Workbook Detail
Number Detective Easy — Set 1
Use the clues to find the mystery number.
Show answer
Answer: 4
- Clues
- I am a multiple of 4.
- My digits add up to 4.
- AnswerRange
- 1
- 20
- Visual
- Type: inline-svgSvg: <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 44 44" width="44" height="44"><g transform="translate(4,4) scale(1)"><path fill="#269" d="M32 7H4c-2.209 0-4 1.791-4 4v15c0 2.209 1.791 4 4 4h11.416c.52.596 1.477 1 2.584 1s2.065-.404 2.584-1H32c2.209 0 4-1.791 4-4V11c0-2.209-1.791-4-4-4z"/><path fill="#292F33" d="M20 27c0 1.104-.896 2-2 2s-2-.896-2-2V9c0-1.104.896-2 2-2s2 .896 2 2v18z"/><path fill="#99AAB5" d="M18 26c0 1.104-.896 2-2 2H4c-1.104 0-2-.896-2-2V8c0-1.104.896-2 2-2h12c1.104 0 2 .896 2 2v18z"/><path fill="#E1E8ED" d="M18 26c-.999-1.998-3.657-2-4-2-2 0-5 2-8 2-1 0-2-.896-2-2V8c0-1.104 1-2 2-2 3.255 0 6-2 8-2 3 0 4 1.896 4 3v19z"/><path fill="#99AAB5" d="M34 26c0 1.104-.896 2-2 2H20c-1.104 0-2-.896-2-2V8c0-1.104.896-2 2-2h12c1.104 0 2 .896 2 2v18z"/><path fill="#CCD6DD" d="M18 26c.999-1.998 3.657-2 4-2 2 0 5 2 8 2 1 0 2-.896 2-2V8c0-1.104-1-2-2-2-3.256 0-6-2-8-2-3 0-4 1.896-4 3v19z"/></g></svg>AltText: book openPlacement: before-question
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Use the clues to find the mystery number.
Show answer
Answer: 6
- Clues
- I am less than 7.
- My ones digit is 6.
- AnswerRange
- 1
- 20
- Visual
- Type: inline-svgSvg: <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 44 44" width="44" height="44"><g transform="translate(4,4) scale(1)"><path fill="#D99E82" d="M35.222 33.598c-.647-2.101-1.705-6.059-2.325-7.566-.501-1.216-.969-2.438-1.544-3.014-.575-.575-1.553-.53-2.143.058 0 0-2.469 1.675-3.354 2.783-1.108.882-2.785 3.357-2.785 3.357-.59.59-.635 1.567-.06 2.143.576.575 1.798 1.043 3.015 1.544 1.506.62 5.465 1.676 7.566 2.325.359.11 1.74-1.271 1.63-1.63z"/><path fill="#EA596E" d="M13.643 5.308c1.151 1.151 1.151 3.016 0 4.167l-4.167 4.168c-1.151 1.15-3.018 1.15-4.167 0L1.141 9.475c-1.15-1.151-1.15-3.016 0-4.167l4.167-4.167c1.15-1.151 3.016-1.151 4.167 0l4.168 4.167z"/><path fill="#FFCC4D" d="M31.353 23.018l-4.17 4.17-4.163 4.165L7.392 15.726l8.335-8.334 15.626 15.626z"/><path fill="#292F33" d="M32.078 34.763s2.709 1.489 3.441.757c.732-.732-.765-3.435-.765-3.435s-2.566.048-2.676 2.678z"/><path fill="#CCD6DD" d="M2.183 10.517l8.335-8.335 5.208 5.209-8.334 8.335z"/><path fill="#99AAB5" d="M3.225 11.558l8.334-8.334 1.042 1.042L4.267 12.6zm2.083 2.086l8.335-8.335 1.042 1.042-8.335 8.334z"/></g></svg>AltText: pencilPlacement: before-question
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Use the clues to find the mystery number.
Show answer
Answer: 6
- Clues
- I am an even number.
- I am greater than 4.
- I am not a multiple of 5.
- Half of me is 3.
- AnswerRange
- 1
- 20
- Visual
- Type: inline-svgSvg: <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 44 44" width="44" height="44"><g transform="translate(4,4) scale(1)"><path fill="#99AAB5" d="M35.354 25.254c.217-2.391-.513-4.558-2.057-6.102L17.033 2.89c-.391-.391-1.024-.391-1.414 0-.391.391-.391 1.024 0 1.414l16.264 16.263c1.116 1.117 1.642 2.717 1.479 4.506-.159 1.748-.957 3.456-2.188 4.686-1.23 1.23-2.938 2.027-4.685 2.187-1.781.161-3.39-.362-4.506-1.479L3.598 12.082c-.98-.98-1.059-2.204-.953-3.058.15-1.196.755-2.401 1.66-3.307 1.7-1.7 4.616-2.453 6.364-.707l14.85 14.849c1.119 1.12.026 2.803-.708 3.536-.733.735-2.417 1.826-3.535.707L9.962 12.789c-.391-.391-1.024-.39-1.414 0-.391.391-.391 1.023 0 1.414l11.313 11.314c1.859 1.858 4.608 1.05 6.363-.707 1.758-1.757 2.565-4.507.708-6.364L12.083 3.597c-2.62-2.62-6.812-1.673-9.192.706C1.677 5.517.864 7.147.661 8.775c-.229 1.833.312 3.509 1.523 4.721l18.384 18.385c1.365 1.365 3.218 2.094 5.281 2.094.27 0 .544-.013.82-.037 2.206-.201 4.362-1.209 5.918-2.765 1.558-1.556 2.565-3.713 2.767-5.919z"/></g></svg>AltText: paperclipPlacement: before-question
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Use the clues to find the mystery number.
Show answer
Answer: 10
- Clues
- My digits add up to 1.
- I am a multiple of 5.
- AnswerRange
- 1
- 20
- Visual
- Type: inline-svgSvg: <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 44 44" width="44" height="44"><g transform="translate(4,4) scale(1)"><path fill="#CCD6DD" d="M3 16v-2h30v2zm0 7v-2h30v2zm0 7v-2h30v2zM3 9V7h30v2z"/><path fill="#D5AB88" d="M35 33V1c0-.552-.448-1-1-1h-1c-.552 0-1 .448-1 1H4c0-.552-.448-1-1-1H2c-.552 0-1 .448-1 1v32h34zM4 4h28v29H4V4z"/><path fill="#3B94D9" d="M19 5.5c-.829 0-1.5.671-1.5 1.5 0-.829-.671-1.5-1.5-1.5s-1.5.671-1.5 1.5c0-.829-.671-1.5-1.5-1.5s-1.5.671-1.5 1.5c0-.829-.671-1.5-1.5-1.5S8.5 6.171 8.5 7c0-.829-.671-1.5-1.5-1.5S5.5 6.171 5.5 7v2c0 .829.671 1.5 1.5 1.5S8.5 9.829 8.5 9c0 .829.671 1.5 1.5 1.5s1.5-.671 1.5-1.5c0 .829.671 1.5 1.5 1.5s1.5-.671 1.5-1.5c0 .829.671 1.5 1.5 1.5s1.5-.671 1.5-1.5c0 .829.671 1.5 1.5 1.5.828 0 1.5-.671 1.5-1.5V7c0-.829-.672-1.5-1.5-1.5z"/><path fill="#BE1931" d="M19 12.5c-.829 0-1.5.671-1.5 1.5 0-.829-.671-1.5-1.5-1.5s-1.5.671-1.5 1.5c0-.829-.671-1.5-1.5-1.5s-1.5.671-1.5 1.5c0-.829-.671-1.5-1.5-1.5s-1.5.671-1.5 1.5c0-.829-.671-1.5-1.5-1.5s-1.5.671-1.5 1.5v2c0 .829.671 1.5 1.5 1.5s1.5-.671 1.5-1.5c0 .829.671 1.5 1.5 1.5s1.5-.671 1.5-1.5c0 .829.671 1.5 1.5 1.5s1.5-.671 1.5-1.5c0 .829.671 1.5 1.5 1.5s1.5-.671 1.5-1.5c0 .829.671 1.5 1.5 1.5.828 0 1.5-.671 1.5-1.5v-2c0-.829-.672-1.5-1.5-1.5z"/><path fill="#5C913B" d="M19 19.5c-.829 0-1.5.672-1.5 1.5 0-.828-.671-1.5-1.5-1.5s-1.5.672-1.5 1.5c0-.828-.671-1.5-1.5-1.5s-1.5.672-1.5 1.5c0-.828-.671-1.5-1.5-1.5s-1.5.672-1.5 1.5c0-.828-.671-1.5-1.5-1.5s-1.5.672-1.5 1.5v2c0 .828.671 1.5 1.5 1.5s1.5-.672 1.5-1.5c0 .828.671 1.5 1.5 1.5s1.5-.672 1.5-1.5c0 .828.671 1.5 1.5 1.5s1.5-.672 1.5-1.5c0 .828.671 1.5 1.5 1.5s1.5-.672 1.5-1.5c0 .828.671 1.5 1.5 1.5.828 0 1.5-.672 1.5-1.5v-2c0-.828-.672-1.5-1.5-1.5z"/><path fill="#FFAC33" d="M19 26.5c-.829 0-1.5.672-1.5 1.5 0-.828-.671-1.5-1.5-1.5s-1.5.672-1.5 1.5c0-.828-.671-1.5-1.5-1.5s-1.5.672-1.5 1.5c0-.828-.671-1.5-1.5-1.5s-1.5.672-1.5 1.5c0-.828-.671-1.5-1.5-1.5s-1.5.672-1.5 1.5v2c0 .828.671 1.5 1.5 1.5s1.5-.672 1.5-1.5c0 .828.671 1.5 1.5 1.5s1.5-.672 1.5-1.5c0 .828.671 1.5 1.5 1.5s1.5-.672 1.5-1.5c0 .828.671 1.5 1.5 1.5s1.5-.672 1.5-1.5c0 .828.671 1.5 1.5 1.5.828 0 1.5-.672 1.5-1.5v-2c0-.828-.672-1.5-1.5-1.5z"/><path fill="#3B94D9" d="M29 10.5c-.828 0-1.5-.671-1.5-1.5V7c0-.829.672-1.5 1.5-1.5s1.5.671 1.5 1.5v2c0 .829-.672 1.5-1.5 1.5z"/><path fill="#BE1931" d="M29 17.5c-.828 0-1.5-.671-1.5-1.5v-2c0-.829.672-1.5 1.5-1.5s1.5.671 1.5 1.5v2c0 .829-.672 1.5-1.5 1.5z"/><path fill="#5C913B" d="M29 24.5c-.828 0-1.5-.672-1.5-1.5v-2c0-.828.672-1.5 1.5-1.5s1.5.672 1.5 1.5v2c0 .828-.672 1.5-1.5 1.5z"/><path fill="#FFAC33" d="M29 31.5c-.828 0-1.5-.672-1.5-1.5v-2c0-.828.672-1.5 1.5-1.5s1.5.672 1.5 1.5v2c0 .828-.672 1.5-1.5 1.5z"/><path fill="#BF6952" d="M35 33H1c-.552 0-1 .448-1 1v1c0 .552.448 1 1 1h34c.552 0 1-.448 1-1v-1c0-.552-.448-1-1-1z"/></g></svg>AltText: abacusPlacement: before-question
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Use the clues to find the mystery number.
Show answer
Answer: 1
- Clues
- My digits add up to 1.
- I am less than 4.
- AnswerRange
- 1
- 20
- Visual
- Type: inline-svgSvg: <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 44 44" width="44" height="44"><g transform="translate(4,4) scale(1)"><path fill="#F4900C" d="M35 26c0 2.209-1.791 4-4 4H5c-2.209 0-4-1.791-4-4V6.313C1 4.104 6.791 0 9 0h20.625C32.719 0 35 2.312 35 5.375V26z"/><path fill="#CCD6DD" d="M33 30c0 2.209-1.791 4-4 4H7c-2.209 0-4-1.791-4-4V6c0-4.119-.021-4 5-4h21c2.209 0 4 1.791 4 4v24z"/><path fill="#E1E8ED" d="M31 31c0 1.657-1.343 3-3 3H4c-1.657 0-3-1.343-3-3V7c0-1.657 1.343-3 3-3h24c1.657 0 3 1.343 3 3v24z"/><path fill="#F4900C" d="M31 32c0 2.209-1.791 4-4 4H6c-2.209 0-4-1.791-4-4V10c0-2.209 1.791-4 4-4h21c2.209 0 4 1.791 4 4v22z"/><path fill="#FFAC33" d="M29 32c0 2.209-1.791 4-4 4H6c-2.209 0-4-1.791-4-4V12c0-2.209 1.791-4 4-4h19.335C27.544 8 29 9.456 29 11.665V32z"/><path fill="#F4900C" d="M6 6C4.312 6 4.269 4.078 5 3.25 5.832 2.309 7.125 2 9.438 2H11V0H8.281C4.312 0 1 2.5 1 5.375V32c0 2.209 1.791 4 4 4h2V6H6z"/></g></svg>AltText: book orangePlacement: before-question
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Use the clues to find the mystery number.
Show answer
Answer: 12
- Clues
- If you double me, you get 24.
- AnswerRange
- 1
- 20
- Visual
- Type: inline-svgSvg: <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 44 44" width="44" height="44"><g transform="translate(4,4) scale(1)"><path fill="#FFCC4D" d="M35.106 33.172L2.828.894C1.273-.662 0-.135 0 2.065V32c0 2.2 1.8 4 4 4h29.935c2.2 0 2.727-1.272 1.171-2.828zM16.967 28H10c-1.1 0-2-.9-2-2v-6.968c0-1.1.637-1.363 1.414-.586l8.139 8.14c.777.777.513 1.414-.586 1.414z"/></g></svg>AltText: triangle rulerPlacement: before-question
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Use the clues to find the mystery number.
Show answer
Answer: 3
- Clues
- I am a multiple of 3.
- My digits add up to 3.
- My ones digit is 3.
- AnswerRange
- 1
- 20
- Visual
- Type: inline-svgSvg: <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 44 44" width="44" height="44"><g transform="translate(4,4) scale(1)"><path fill="#31373D" d="M24 14H12s-5 6-5 10 11 11 11 11 11-7 11-11-5-10-5-10z"/><path fill="#292F33" d="M19.64 1.28c-.901-.704-2.377-.704-3.278 0L1.639 12.776c-.901.704-.901 1.856 0 2.56l14.722 11.495c.902.704 2.377.704 3.278 0l14.722-11.495c.902-.704.902-1.856 0-2.56L19.64 1.28z"/><path fill="#394146" d="M19.64 1.28c-.901-.704-2.377-.704-3.278 0L1.639 12.776c-.901.704-.901 1.856 0 2.56l14.722 11.495c.901.704 2.377.704 3.278 0l14.723-11.495c.901-.704.901-1.856 0-2.56L19.64 1.28z"/><path fill="#FCAB40" d="M8 25s-2 2-2 3v6s0 2 2 2 2-2 2-2v-6c0-1-2-3-2-3z"/><circle fill="#FDD888" cx="8" cy="26" r="3"/><path fill="#FCAB40" d="M8.001 27c-.552 0-1-.447-1-1v-3.958c-.042-.634.187-2.036 1.317-2.884l9.022-7.91c.416-.365 1.048-.323 1.411.093.364.415.322 1.047-.093 1.411l-9.08 7.958C8.974 21.166 9 21.982 9 21.99L9.002 26c0 .553-.448 1-1.001 1z"/><circle fill="#31373D" cx="18" cy="13" r="3"/></g></svg>AltText: graduationPlacement: before-question
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Use the clues to find the mystery number.
Show answer
Answer: 10
- Clues
- I am a multiple of 2.
- Half of me is 5.
- AnswerRange
- 1
- 20
- Visual
- Type: inline-svgSvg: <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 44 44" width="44" height="44"><g transform="translate(4,4) scale(1)"><path fill="#A0041E" d="M35 26c0 2.209-1.791 4-4 4H5c-2.209 0-4-1.791-4-4V6.313C1 4.104 6.791 0 9 0h20.625C32.719 0 35 2.312 35 5.375V26z"/><path fill="#CCD6DD" d="M33 30c0 2.209-1.791 4-4 4H7c-2.209 0-4-1.791-4-4V6c0-4.119-.021-4 5-4h21c2.209 0 4 1.791 4 4v24z"/><path fill="#E1E8ED" d="M31 31c0 1.657-1.343 3-3 3H4c-1.657 0-3-1.343-3-3V7c0-1.657 1.343-3 3-3h24c1.657 0 3 1.343 3 3v24z"/><path fill="#BE1931" d="M31 32c0 2.209-1.791 4-4 4H6c-2.209 0-4-1.791-4-4V10c0-2.209 1.791-4 4-4h21c2.209 0 4 1.791 4 4v22z"/><path fill="#DD2E44" d="M29 32c0 2.209-1.791 4-4 4H6c-2.209 0-4-1.791-4-4V12c0-2.209 1.791-4 4-4h19.335C27.544 8 29 9.456 29 11.665V32z"/><path fill="#A0041E" d="M6 6C4.312 6 4.269 4.078 5 3.25 5.832 2.309 7.125 2 9.438 2H11V0H8.281C4.312 0 1 2.5 1 5.375V32c0 2.209 1.791 4 4 4h2V6H6z"/></g></svg>AltText: book closedPlacement: before-question
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Use the clues to find the mystery number.
Show answer
Answer: 7
- Clues
- I am less than 12.
- My ones digit is 7.
- AnswerRange
- 1
- 20
- Visual
- Type: inline-svgSvg: <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 44 44" width="44" height="44"><g transform="translate(4,4) scale(1)"><path fill="#C1694F" d="M3.968 33.446C2.211 35.204.47 36.312.079 35.921c-.391-.391.718-2.132 2.475-3.889 1.757-1.758 3.498-2.866 3.889-2.475.39.391-.718 2.131-2.475 3.889z"/><path fill="#FFCC4D" d="M6.443 29.558l-2.122-2.122s-1.083 1.393-2.284 3.63C1.137 32.742.786 33.8.786 33.8l.707.707.707.707s1.059-.352 2.734-1.251c2.237-1.201 3.629-2.284 3.629-2.284l-2.12-2.121z"/><path fill="#31373D" d="M34.02 1.98c-3.535-3.536-18.164 10.297-18.871 11.004-.707.707-1.304 1.348-.928 1.724L12.1 16.829c-2.122 2.122-8.486 9.899-7.779 10.606l2.122 2.122 2.121 2.121c.707.707 8.485-5.657 10.607-7.778l2.121-2.121c.376.376 1.017-.222 1.724-.929.707-.706 14.54-15.334 11.004-18.87z"/><path fill="#FFCC4D" d="M23.016 20.851c.085-.084.362-.375.774-.817l-7.823-7.822c-.442.411-.732.689-.817.774-.707.707-1.304 1.348-.928 1.724l3.535 3.536 3.536 3.535c.375.374 1.016-.223 1.723-.93z"/><path fill="#FFAC33" d="M31.212 2.001C30.285 1.074 29.048.102 27.28.986c-1.768.884-7.313 4.441-9.878 7.005-1.322 1.322-1.247 2.102-.751 2.165.821.106 1.37.088 2.122-.663.75-.751.883-2.033.883-2.033s3.05-2.342 5.458-3.778c2.409-1.437 3.268-1.682 4.11-.84.842.842 1.988-.841 1.988-.841z"/><path fill="#FFAC33" d="M28.87 2.487l4.643 4.643c.353-.709.631-1.384.818-2.011l-3.45-3.45c-.627.188-1.301.466-2.011.818z"/></g></svg>AltText: penPlacement: before-question
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Use the clues to find the mystery number.
Show answer
Answer: 6
- Clues
- I am a multiple of 2.
- I am less than 10.
- My ones digit is 6.
- AnswerRange
- 1
- 20
- Visual
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Use the clues to find the mystery number.
Show answer
Answer: 19
- Clues
- My digits add up to 10.
- AnswerRange
- 1
- 20
- Visual
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Use the clues to find the mystery number.
Show answer
Answer: 19
- Clues
- I am an odd number.
- My tens digit is 1.
- I am greater than 16.
- My digits add up to 10.
- AnswerRange
- 1
- 20
- Visual
- Type: inline-svgSvg: <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 44 44" width="44" height="44"><g transform="translate(4,4) scale(1)"><circle fill="#88C9F9" cx="18" cy="18" r="18"/><path fill="#5C913B" d="M25.716 1.756c-1.022.568-1.872 1.528-3.028 1.181-1.875-.562-4.375-1.812-6-.25s-2 3 0 2.938 3.375-2.438 4.375-1.438.749 1.813-1.625 2.125S14.5 7 13.125 7s-1.688.812-.75 1.688-.563.937-2.125 1.812.375 1.25 1.688 2 2.312-.188 2.875-1.438 2.981-2.75 3.99-2.562c1.01.188 1.01.688.822 1.562s.75.625.812-.375 1.188-1.75 2.062-1.812 1.625 1.188.625 1.812-2 1.125-.75 1.438 2.125 1.938.688 2.625-3.937 1.125-5.062.562-3.688-1.375-4.375-.938-1.062.89-1.875 1.195c-.812.305-4.125 1.805-4.188 3.743S7.438 22.438 8.75 22.5s4.5-.812 5.5-1.625 2.375-.625 2.812.312.125 1.5-.312 3 .286 2.25.987 3.562c.701 1.312 1.263 2.062 1.263 3s1 1.875 2.5.312 2.875-4.625 3.5-5.75 1.125-3.625 1.875-4.125 1.938-1.688 1.062-1.5-2.625-.062-3.062-1.312-2.312-3.625-1.438-3.875 1.875 1.39 2.25 2.164c.375.774.875 1.711 1.625 1.961s2.375-1.673 2.875-1.961c.5-.289.125-1.476-.875-1.351s-2.312 0-2.312-.624 1.25-1.438 2.25-1.25 1.75.5 2.375 1.25 1.875 2.125 2.375 3 .875 1 1.125-.562c.166-1.038.387-1.609.59-2.222-1.013-5.829-4.82-10.683-9.999-13.148z"/></g></svg>AltText: globePlacement: before-question
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Use the clues to find the mystery number.
Show answer
Answer: 3
- Clues
- I am greater than 1.
- I am less than 5.
- My digits add up to 3.
- AnswerRange
- 1
- 20
- Visual
- Type: inline-svgSvg: <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 44 44" width="44" height="44"><g transform="translate(4,4) scale(1)"><path fill="#9AAAB4" d="M27.388 24.642L24.56 27.47l-4.95-4.95 2.828-2.828z"/><path fill="#66757F" d="M34.683 29.11l-5.879-5.879c-.781-.781-2.047-.781-2.828 0l-2.828 2.828c-.781.781-.781 2.047 0 2.828l5.879 5.879c1.562 1.563 4.096 1.563 5.658 0 1.56-1.561 1.559-4.094-.002-5.656z"/><circle fill="#8899A6" cx="13.586" cy="13.669" r="13.5"/><circle fill="#BBDDF5" cx="13.586" cy="13.669" r="9.5"/></g></svg>AltText: magnifierPlacement: before-question
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Use the clues to find the mystery number.
Show answer
Answer: 9
- Clues
- I am an odd number.
- If you double me, you get 18.
- AnswerRange
- 1
- 20
- Visual
- Type: inline-svgSvg: <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 44 44" width="44" height="44"><g transform="translate(4,4) scale(1)"><path fill="#DD2E44" d="M35.702 7.477L28.522.298c-.396-.397-1.038-.397-1.436 0L3.395 23.989c-.397.397-.397 1.038 0 1.437.72.719-3.14 7.959-3.395 8.496L2.068 36c.536-.255 7.785-4.115 8.506-3.395.397.397 1.039.397 1.436 0L35.702 8.913c.397-.396.397-1.039 0-1.436z"/><path fill="#EA596E" d="M4.139 23.24L26.407.972l8.62 8.62L12.759 31.86z"/><path fill="#292F33" d="M23.534 3.846l1.437-1.436 8.62 8.62-1.437 1.436zM5.576 21.803l1.436-1.437 8.62 8.62-1.437 1.437z"/><path fill="#BE1931" d="M26.886 9.353c-1.521-1.521-5.982.476-9.967 4.459-3.983 3.984-5.979 8.446-4.459 9.967 1.52 1.521 5.983-.476 9.967-4.459 3.983-3.984 5.979-8.447 4.459-9.967z"/></g></svg>AltText: crayonPlacement: before-question
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Use the clues to find the mystery number.
Show answer
Answer: 3
- Clues
- I am an odd number.
- If you double me, you get 6.
- AnswerRange
- 1
- 20
- Visual
- Type: inline-svgSvg: <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 44 44" width="44" height="44"><g transform="translate(4,4) scale(1)"><path fill="#DD2E44" d="M16.806 10.675c-.92-2.047-2.003-4.066-3.026-6.26-.028-.068-.051-.138-.082-.206-.064-.142-.137-.277-.208-.413l-.052-.111-.002.003C11.798.698 8.343-.674 5.46.621 2.414 1.988 1.164 5.813 2.67 9.163c1.505 3.351 5.194 4.957 8.24 3.589.106-.047.205-.105.306-.159 1.935.438 1.994 1.877 1.994 1.877s4.618-1.521 3.596-3.795zM4.876 8.173c-.958-2.133-.252-4.527 1.575-5.347 1.826-.822 4.084.242 5.042 2.374.958 2.132.253 4.526-1.573 5.346-1.828.821-4.087-.241-5.044-2.373z"/><path fill="#99AAB5" d="M26.978 34.868c1.163-.657 2.187-2.474 1.529-3.638L16.754 10.559c-1.103.496-2.938 2.313-3.544 3.912l13.768 20.397z"/><path fill="#DD2E44" d="M30.54.62c-2.882-1.295-6.338.077-7.976 3.067l-.003-.003-.053.112c-.071.135-.145.27-.208.412-.03.068-.053.137-.081.206-1.023 2.194-2.107 4.213-3.026 6.26-1.021 2.274 3.597 3.796 3.597 3.796s.059-1.439 1.993-1.877c.102.054.2.111.307.159 3.045 1.368 6.733-.238 8.24-3.589 1.505-3.35.255-7.175-2.79-8.543zm.584 7.553c-.959 2.132-3.216 3.194-5.044 2.373-1.826-.82-2.531-3.214-1.572-5.346.956-2.132 3.214-3.195 5.041-2.374 1.827.82 2.532 3.214 1.575 5.347z"/><path fill="#CCD6DD" d="M9.022 34.868c-1.163-.657-2.187-2.474-1.529-3.638l11.753-20.671c1.103.496 2.938 2.313 3.544 3.912L9.022 34.868z"/><path fill="#99AAB5" d="M19.562 17.396c0 .863-.701 1.562-1.562 1.562-.863 0-1.562-.699-1.562-1.562 0-.863.699-1.562 1.562-1.562.862 0 1.562.699 1.562 1.562z"/></g></svg>AltText: scissorsPlacement: before-question
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Use the clues to find the mystery number.
Show answer
Answer: 12
- Clues
- My ones digit is 2.
- My digits add up to 3.
- AnswerRange
- 1
- 20
- Visual
- Type: inline-svgSvg: <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 44 44" width="44" height="44"><g transform="translate(4,4) scale(1)"><path fill="#269" d="M32 7H4c-2.209 0-4 1.791-4 4v15c0 2.209 1.791 4 4 4h11.416c.52.596 1.477 1 2.584 1s2.065-.404 2.584-1H32c2.209 0 4-1.791 4-4V11c0-2.209-1.791-4-4-4z"/><path fill="#292F33" d="M20 27c0 1.104-.896 2-2 2s-2-.896-2-2V9c0-1.104.896-2 2-2s2 .896 2 2v18z"/><path fill="#99AAB5" d="M18 26c0 1.104-.896 2-2 2H4c-1.104 0-2-.896-2-2V8c0-1.104.896-2 2-2h12c1.104 0 2 .896 2 2v18z"/><path fill="#E1E8ED" d="M18 26c-.999-1.998-3.657-2-4-2-2 0-5 2-8 2-1 0-2-.896-2-2V8c0-1.104 1-2 2-2 3.255 0 6-2 8-2 3 0 4 1.896 4 3v19z"/><path fill="#99AAB5" d="M34 26c0 1.104-.896 2-2 2H20c-1.104 0-2-.896-2-2V8c0-1.104.896-2 2-2h12c1.104 0 2 .896 2 2v18z"/><path fill="#CCD6DD" d="M18 26c.999-1.998 3.657-2 4-2 2 0 5 2 8 2 1 0 2-.896 2-2V8c0-1.104-1-2-2-2-3.256 0-6-2-8-2-3 0-4 1.896-4 3v19z"/></g></svg>AltText: book openPlacement: before-question
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Use the clues to find the mystery number.
Show answer
Answer: 10
- Clues
- I am a multiple of 10.
- If you double me, you get 20.
- AnswerRange
- 1
- 20
- Visual
- Type: inline-svgSvg: <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 44 44" width="44" height="44"><g transform="translate(4,4) scale(1)"><path fill="#BE1931" d="M23.651 23.297L12.702 12.348l9.386-7.821 9.385 9.385z"/><path fill="#DD2E44" d="M34.6 13.912c-1.727 1.729-4.528 1.729-6.255 0l-6.257-6.256c-1.729-1.727-1.729-4.53 0-6.258 1.726-1.727 4.528-1.727 6.257 0L34.6 7.656c1.728 1.727 1.728 4.529 0 6.256z"/><path fill="#99AAB5" d="M14 17.823S-.593 35.029.188 35.813C.97 36.596 18.177 22 18.177 22L14 17.823z"/><path fill="#DD2E44" d="M25.215 27.991c-1.726 1.729-4.528 1.729-6.258 0L8.009 17.041c-1.727-1.728-1.727-4.528 0-6.256 1.728-1.729 4.53-1.729 6.258 0l10.948 10.949c1.728 1.729 1.728 4.528 0 6.257z"/></g></svg>AltText: pushpinPlacement: before-question
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Use the clues to find the mystery number.
Show answer
Answer: 3
- Clues
- I am an odd number.
- I am not a multiple of 5.
- My ones digit is 3.
- If you double me, you get 6.
- AnswerRange
- 1
- 20
- Visual
- Type: inline-svgSvg: <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 44 44" width="44" height="44"><g transform="translate(4,4) scale(1)"><path fill="#3E721D" d="M35 26c0 2.209-1.791 4-4 4H5c-2.209 0-4-1.791-4-4V6.313C1 4.104 6.791 0 9 0h20.625C32.719 0 35 2.312 35 5.375V26z"/><path fill="#CCD6DD" d="M33 30c0 2.209-1.791 4-4 4H7c-2.209 0-4-1.791-4-4V6c0-4.119-.021-4 5-4h21c2.209 0 4 1.791 4 4v24z"/><path fill="#E1E8ED" d="M31 31c0 1.657-1.343 3-3 3H4c-1.657 0-3-1.343-3-3V7c0-1.657 1.343-3 3-3h24c1.657 0 3 1.343 3 3v24z"/><path fill="#5C913B" d="M31 32c0 2.209-1.791 4-4 4H6c-2.209 0-4-1.791-4-4V10c0-2.209 1.791-4 4-4h21c2.209 0 4 1.791 4 4v22z"/><path fill="#77B255" d="M29 32c0 2.209-1.791 4-4 4H6c-2.209 0-4-1.791-4-4V12c0-2.209 1.791-4 4-4h19.335C27.544 8 29 9.456 29 11.665V32z"/><path fill="#3E721D" d="M6 6C4.312 6 4.269 4.078 5 3.25 5.832 2.309 7.125 2 9.438 2H11V0H8.281C4.312 0 1 2.5 1 5.375V32c0 2.209 1.791 4 4 4h2V6H6z"/></g></svg>AltText: book greenPlacement: before-question
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Use the clues to find the mystery number.
Show answer
Answer: 13
- Clues
- I am less than 14.
- If you double me, you get 26.
- AnswerRange
- 1
- 20
- Visual
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Use the clues to find the mystery number.
Show answer
Answer: 5
- Clues
- I am a multiple of 5.
- I am an odd number.
- If you double me, you get 10.
- AnswerRange
- 1
- 20
- Visual
- Type: inline-svgSvg: <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 44 44" width="44" height="44"><g transform="translate(4,4) scale(1)"><path fill="#F4900C" d="M35 26c0 2.209-1.791 4-4 4H5c-2.209 0-4-1.791-4-4V6.313C1 4.104 6.791 0 9 0h20.625C32.719 0 35 2.312 35 5.375V26z"/><path fill="#CCD6DD" d="M33 30c0 2.209-1.791 4-4 4H7c-2.209 0-4-1.791-4-4V6c0-4.119-.021-4 5-4h21c2.209 0 4 1.791 4 4v24z"/><path fill="#E1E8ED" d="M31 31c0 1.657-1.343 3-3 3H4c-1.657 0-3-1.343-3-3V7c0-1.657 1.343-3 3-3h24c1.657 0 3 1.343 3 3v24z"/><path fill="#F4900C" d="M31 32c0 2.209-1.791 4-4 4H6c-2.209 0-4-1.791-4-4V10c0-2.209 1.791-4 4-4h21c2.209 0 4 1.791 4 4v22z"/><path fill="#FFAC33" d="M29 32c0 2.209-1.791 4-4 4H6c-2.209 0-4-1.791-4-4V12c0-2.209 1.791-4 4-4h19.335C27.544 8 29 9.456 29 11.665V32z"/><path fill="#F4900C" d="M6 6C4.312 6 4.269 4.078 5 3.25 5.832 2.309 7.125 2 9.438 2H11V0H8.281C4.312 0 1 2.5 1 5.375V32c0 2.209 1.791 4 4 4h2V6H6z"/></g></svg>AltText: book orangePlacement: before-question
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Teaching Notes
Practice number detective with free printable worksheets. Uniquely generated — reinforce key math skills with every set.
Frequently Asked Questions
How do I use this Number Detective Easy Worksheets worksheet?
Print the worksheet and complete the problems. Each set number generates a unique arrangement. Use the same set number for all students in a class for consistent assessment.
Is there an answer key?
Yes — every worksheet includes a complete answer key. Print it separately or view it on screen.