Workbook Detail
Number Detective Easy — Set 4
Use the clues to find the mystery number.
Show answer
Answer: 8
- Clues
- If you double me, you get 16.
- 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 d="M11.946 27C-1.036 7.876 7.524 2.752 9.114 2c.149-.07.242-.105.245-.107.418-.209.638-.675.529-1.125C9.779.318 9.372 0 8.903 0H4.847C1.054 0-4.282 11 5.859 28c.151.253 5.073 0 5.073 0 .559 0 1.324-.541 1.014-1zM31.229 0h-4c-.462 0-.863.318-.971.768-.107.45.109.916.521 1.125.004.002.095.037.242.107 1.568.752 10.01 5.876-2.792 25-.307.459.448 1 1 1 0 0 4.854.253 5.002 0 10-17 4.739-28 .998-28z" fill="#C1694F"/><path d="M6.889 28.836l.004.01c-.064-.293 5.363-1.387 5.053-1.846C-1.036 7.876 7.524 2.752 9.114 2H4.845C1.053 2-3.268 13 6.889 28.836zM31.231 2h-4.21c1.568.752 10.01 5.876-2.792 25-.307.459 4.984 1.839 4.986 1.836C39.231 13 34.971 2 31.231 2z" fill="#662113"/><path fill="#C1694F" d="M9.916 8c-.561 0-1.015-.448-1.015-1 0-3.316-2.028-5-4.056-5-.47 0-.08-.782.029-1.232.11-.45.516-.768.985-.768h5.071c3.791 0 4.938 6.136 5.057 6.835.049.29-.034.586-.226.811-.195.225-.478.354-.775.354h-5.07zm16.315 0c.553 0 1-.448 1-1 0-3.316 2-5 4-5 .463 0 .078-.782-.029-1.232-.107-.45-.508-.768-.971-.768h-5c-3.738 0-4.869 6.136-4.986 6.835-.049.29.033.586.223.811.191.225.47.354.763.354h5z"/><path fill="#BE1931" d="M6 32s0 4 4 4h16s4 0 4-4V10s0-4-4-4H10c-4 0-4 4-4 4v22z"/><path fill="#A0041E" d="M24 28H12c-2.201 0-3-1.794-3-3V11c0-.552.448-1 1-1s1 .448 1 1v14c.012.45.195 1 1 1h12c.45-.012 1-.194 1-1V11c0-.552.447-1 1-1s1 .448 1 1v14c0 2.201-1.794 3-3 3z"/><path fill="#FFF" d="M16 25s0-1 1-1h2s1 0 1 1v5s0 1-1 1h-2s-1 0-1-1v-5z"/></g></svg>AltText: backpackPlacement: before-question
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Use the clues to find the mystery number.
Show answer
Answer: 16
- Clues
- My ones digit is 6.
- Half of me is 8.
- 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="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="#3B88C3" 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="#55ACEE" 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="#269" 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 bluePlacement: before-question
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Use the clues to find the mystery number.
Show answer
Answer: 8
- Clues
- My ones digit is 8.
- If you double me, you get 16.
- 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="M32 34c0 1.104-.896 2-2 2H6c-1.104 0-2-.896-2-2V7c0-1.104.896-2 2-2h24c1.104 0 2 .896 2 2v27z"/><path fill="#FFF" d="M29 32c0 .553-.447 1-1 1H8c-.552 0-1-.447-1-1V9c0-.552.448-1 1-1h20c.553 0 1 .448 1 1v23z"/><path fill="#CCD6DD" d="M25 3h-4c0-1.657-1.343-3-3-3s-3 1.343-3 3h-4c-1.104 0-2 .896-2 2v5h18V5c0-1.104-.896-2-2-2z"/><circle fill="#292F33" cx="18" cy="3" r="2"/><path fill="#99AAB5" d="M20 14c0 .552-.447 1-1 1h-9c-.552 0-1-.448-1-1s.448-1 1-1h9c.553 0 1 .448 1 1zm7 4c0 .552-.447 1-1 1H10c-.552 0-1-.448-1-1s.448-1 1-1h16c.553 0 1 .448 1 1zm0 4c0 .553-.447 1-1 1H10c-.552 0-1-.447-1-1 0-.553.448-1 1-1h16c.553 0 1 .447 1 1zm0 4c0 .553-.447 1-1 1H10c-.552 0-1-.447-1-1 0-.553.448-1 1-1h16c.553 0 1 .447 1 1zm0 4c0 .553-.447 1-1 1h-9c-.552 0-1-.447-1-1 0-.553.448-1 1-1h9c.553 0 1 .447 1 1z"/></g></svg>AltText: chalkboardPlacement: before-question
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Use the clues to find the mystery number.
Show answer
Answer: 8
- Clues
- My ones digit is 8.
- I am less than 11.
- 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: 1
- Clues
- I am an odd number.
- My ones digit is 1.
- I am less than 2.
- 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: 16
- Clues
- My tens digit is 1.
- I am a multiple of 4.
- 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="#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: 7
- Clues
- I am greater than 6.
- My ones digit is 7.
- My digits add up to 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="#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: 7
- Clues
- My ones digit is 7.
- My digits add up to 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="M32 34c0 1.104-.896 2-2 2H6c-1.104 0-2-.896-2-2V7c0-1.104.896-2 2-2h24c1.104 0 2 .896 2 2v27z"/><path fill="#FFF" d="M29 32c0 .553-.447 1-1 1H8c-.552 0-1-.447-1-1V9c0-.552.448-1 1-1h20c.553 0 1 .448 1 1v23z"/><path fill="#CCD6DD" d="M25 3h-4c0-1.657-1.343-3-3-3s-3 1.343-3 3h-4c-1.104 0-2 .896-2 2v5h18V5c0-1.104-.896-2-2-2z"/><circle fill="#292F33" cx="18" cy="3" r="2"/><path fill="#99AAB5" d="M20 14c0 .552-.447 1-1 1h-9c-.552 0-1-.448-1-1s.448-1 1-1h9c.553 0 1 .448 1 1zm7 4c0 .552-.447 1-1 1H10c-.552 0-1-.448-1-1s.448-1 1-1h16c.553 0 1 .448 1 1zm0 4c0 .553-.447 1-1 1H10c-.552 0-1-.447-1-1 0-.553.448-1 1-1h16c.553 0 1 .447 1 1zm0 4c0 .553-.447 1-1 1H10c-.552 0-1-.447-1-1 0-.553.448-1 1-1h16c.553 0 1 .447 1 1zm0 4c0 .553-.447 1-1 1h-9c-.552 0-1-.447-1-1 0-.553.448-1 1-1h9c.553 0 1 .447 1 1z"/></g></svg>AltText: chalkboardPlacement: before-question
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Use the clues to find the mystery number.
Show answer
Answer: 13
- Clues
- My digits add up to 4.
- I am greater than 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="#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: 16
- Clues
- My ones digit is 6.
- I am greater than 12.
- 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: 6
- Clues
- My digits add up to 6.
- 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="#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: 9
- Clues
- I am not a multiple of 5.
- I am less than 13.
- My digits add up to 9.
- AnswerRange
- 1
- 20
- Visual
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Use the clues to find the mystery number.
Show answer
Answer: 7
- Clues
- I am greater than 3.
- I am an odd number.
- I am less than 11.
- My ones digit is 7.
- AnswerRange
- 1
- 20
- Visual
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Use the clues to find the mystery number.
Show answer
Answer: 19
- Clues
- My ones digit is 9.
- My tens digit is 1.
- 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
- 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: 16
- Clues
- Half of me is 8.
- 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: 12
- Clues
- I am an even number.
- Half of me 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="#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: 19
- Clues
- 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)"><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: 20
- Clues
- I am not a multiple of 3.
- I am a multiple of 10.
- Half of me is 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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Use the clues to find the mystery number.
Show answer
Answer: 3
- Clues
- I am not a multiple of 5.
- 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="#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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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.