Workbook Detail
Number Detective Medium — Set 10
Use the clues to find the mystery number.
Show answer
Answer: 34
- Clues
- Half of me is 17.
- AnswerRange
- 5
- 50
Use the clues to find the mystery number.
Show answer
Answer: 7
- Clues
- My digits add up to 7.
- My ones digit is 7.
- AnswerRange
- 5
- 50
- 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: 26
- Clues
- I am an even number.
- If you double me, you get 52.
- AnswerRange
- 5
- 50
Use the clues to find the mystery number.
Show answer
Answer: 19
- Clues
- I am not a multiple of 5.
- I am greater than 11.
- If you double me, you get 38.
- AnswerRange
- 5
- 50
- 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: 12
- Clues
- I am a multiple of 3.
- I am an even number.
- My ones digit is 2.
- If you double me, you get 24.
- AnswerRange
- 5
- 50
- 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: 33
- Clues
- If you double me, you get 66.
- AnswerRange
- 5
- 50
Use the clues to find the mystery number.
Show answer
Answer: 31
- Clues
- My digits add up to 4.
- I am greater than 26.
- If you double me, you get 62.
- AnswerRange
- 5
- 50
Use the clues to find the mystery number.
Show answer
Answer: 45
- Clues
- I am not a multiple of 2.
- I am a multiple of 3.
- My ones digit is 5.
- If you double me, you get 90.
- AnswerRange
- 5
- 50
Use the clues to find the mystery number.
Show answer
Answer: 13
- Clues
- I am less than 22.
- I am an odd number.
- If you double me, you get 26.
- AnswerRange
- 5
- 50
- Visual
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Use the clues to find the mystery number.
Show answer
Answer: 36
- Clues
- I am an even number.
- I am not a multiple of 5.
- My tens digit is 3.
- Half of me is 18.
- AnswerRange
- 5
- 50
Use the clues to find the mystery number.
Show answer
Answer: 16
- Clues
- My ones digit is 6.
- I am greater than 15.
- Half of me is 8.
- AnswerRange
- 5
- 50
- 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: 28
- Clues
- I am not a multiple of 3.
- I am less than 38.
- Half of me is 14.
- AnswerRange
- 5
- 50
Use the clues to find the mystery number.
Show answer
Answer: 47
- Clues
- If you double me, you get 94.
- AnswerRange
- 5
- 50
Use the clues to find the mystery number.
Show answer
Answer: 14
- Clues
- My tens digit is 1.
- I am an even number.
- If you double me, you get 28.
- AnswerRange
- 5
- 50
- 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: 12
- Clues
- I am a multiple of 2.
- My ones digit is 2.
- I am less than 20.
- AnswerRange
- 5
- 50
- Visual
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Use the clues to find the mystery number.
Show answer
Answer: 44
- Clues
- My tens digit is 4.
- Half of me is 22.
- AnswerRange
- 5
- 50
Use the clues to find the mystery number.
Show answer
Answer: 20
- Clues
- I am less than 24.
- If you double me, you get 40.
- AnswerRange
- 5
- 50
- Visual
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Use the clues to find the mystery number.
Show answer
Answer: 24
- Clues
- I am a multiple of 2.
- My tens digit is 2.
- I am less than 25.
- I am not a multiple of 5.
- Half of me is 12.
- AnswerRange
- 5
- 50
Use the clues to find the mystery number.
Show answer
Answer: 44
- Clues
- Half of me is 22.
- AnswerRange
- 5
- 50
Use the clues to find the mystery number.
Show answer
Answer: 28
- Clues
- I am a multiple of 2.
- I am less than 29.
- I am greater than 24.
- My digits add up to 10.
- AnswerRange
- 5
- 50
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 Medium 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.