Workbook Detail
Number Detective Hard — Set 6
Use the clues to find the mystery number.
Show answer
Answer: 24
- Clues
- My ones digit is 4.
- I am less than 29.
- Half of me is 12.
- AnswerRange
- 10
- 99
Use the clues to find the mystery number.
Show answer
Answer: 73
- Clues
- I am greater than 61.
- If you double me, you get 146.
- AnswerRange
- 10
- 99
Use the clues to find the mystery number.
Show answer
Answer: 69
- Clues
- I am less than 73.
- My tens digit is 6.
- I am not a multiple of 5.
- If you double me, you get 138.
- AnswerRange
- 10
- 99
Use the clues to find the mystery number.
Show answer
Answer: 34
- Clues
- My tens digit is 3.
- I am a multiple of 2.
- Half of me is 17.
- AnswerRange
- 10
- 99
Use the clues to find the mystery number.
Show answer
Answer: 19
- Clues
- I am greater than 12.
- My digits add up to 10.
- I am less than 26.
- AnswerRange
- 10
- 99
- Visual
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Use the clues to find the mystery number.
Show answer
Answer: 10
- Clues
- I am an even number.
- Half of me is 5.
- AnswerRange
- 10
- 99
- 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: 54
- Clues
- My tens digit is 5.
- My ones digit is 4.
- AnswerRange
- 10
- 99
Use the clues to find the mystery number.
Show answer
Answer: 28
- Clues
- I am greater than 15.
- My digits add up to 10.
- I am an even number.
- I am less than 40.
- AnswerRange
- 10
- 99
Use the clues to find the mystery number.
Show answer
Answer: 46
- Clues
- Half of me is 23.
- AnswerRange
- 10
- 99
Use the clues to find the mystery number.
Show answer
Answer: 82
- Clues
- Half of me is 41.
- AnswerRange
- 10
- 99
Use the clues to find the mystery number.
Show answer
Answer: 64
- Clues
- If you double me, you get 128.
- AnswerRange
- 10
- 99
Use the clues to find the mystery number.
Show answer
Answer: 42
- Clues
- I am greater than 39.
- If you double me, you get 84.
- AnswerRange
- 10
- 99
Use the clues to find the mystery number.
Show answer
Answer: 61
- Clues
- My tens digit is 6.
- I am not a multiple of 2.
- If you double me, you get 122.
- AnswerRange
- 10
- 99
Use the clues to find the mystery number.
Show answer
Answer: 15
- Clues
- My ones digit is 5.
- My digits add up to 6.
- AnswerRange
- 10
- 99
- Visual
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Use the clues to find the mystery number.
Show answer
Answer: 38
- Clues
- My digits add up to 11.
- My tens digit is 3.
- AnswerRange
- 10
- 99
Use the clues to find the mystery number.
Show answer
Answer: 51
- Clues
- I am greater than 40.
- I am a multiple of 3.
- My tens digit is 5.
- I am less than 57.
- My digits add up to 6.
- AnswerRange
- 10
- 99
Use the clues to find the mystery number.
Show answer
Answer: 72
- Clues
- I am an even number.
- My digits add up to 9.
- I am greater than 69.
- If you double me, you get 144.
- AnswerRange
- 10
- 99
Use the clues to find the mystery number.
Show answer
Answer: 67
- Clues
- My tens digit is 6.
- My digits add up to 13.
- AnswerRange
- 10
- 99
Use the clues to find the mystery number.
Show answer
Answer: 73
- Clues
- I am greater than 65.
- My digits add up to 10.
- My ones digit is 3.
- AnswerRange
- 10
- 99
Use the clues to find the mystery number.
Show answer
Answer: 20
- Clues
- My ones digit is 0.
- My digits add up to 2.
- AnswerRange
- 10
- 99
- Visual
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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 Hard 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.