Workbook Detail
Number Detective Hard — Set 2
Use the clues to find the mystery number.
Show answer
Answer: 66
- Clues
- I am an even number.
- I am a multiple of 3.
- I am not a multiple of 5.
- Half of me is 33.
- AnswerRange
- 10
- 99
Use the clues to find the mystery number.
Show answer
Answer: 48
- Clues
- If you double me, you get 96.
- AnswerRange
- 10
- 99
Use the clues to find the mystery number.
Show answer
Answer: 90
- Clues
- My tens digit is 9.
- Half of me is 45.
- AnswerRange
- 10
- 99
Use the clues to find the mystery number.
Show answer
Answer: 79
- Clues
- My ones digit is 9.
- My digits add up to 16.
- AnswerRange
- 10
- 99
Use the clues to find the mystery number.
Show answer
Answer: 28
- Clues
- Half of me is 14.
- AnswerRange
- 10
- 99
Use the clues to find the mystery number.
Show answer
Answer: 30
- Clues
- I am a multiple of 5.
- Half of me is 15.
- AnswerRange
- 10
- 99
Use the clues to find the mystery number.
Show answer
Answer: 75
- Clues
- I am greater than 67.
- My tens digit is 7.
- I am a multiple of 5.
- I am not a multiple of 2.
- AnswerRange
- 10
- 99
Use the clues to find the mystery number.
Show answer
Answer: 72
- Clues
- I am greater than 69.
- My digits add up to 9.
- My tens digit is 7.
- AnswerRange
- 10
- 99
Use the clues to find the mystery number.
Show answer
Answer: 85
- Clues
- I am a multiple of 5.
- My digits add up to 13.
- AnswerRange
- 10
- 99
Use the clues to find the mystery number.
Show answer
Answer: 95
- Clues
- My tens digit is 9.
- My digits add up to 14.
- AnswerRange
- 10
- 99
Use the clues to find the mystery number.
Show answer
Answer: 50
- Clues
- I am a multiple of 5.
- My digits add up to 5.
- AnswerRange
- 10
- 99
Use the clues to find the mystery number.
Show answer
Answer: 25
- Clues
- I am an odd number.
- My digits add up to 7.
- My ones digit is 5.
- AnswerRange
- 10
- 99
Use the clues to find the mystery number.
Show answer
Answer: 89
- Clues
- I am less than 98.
- If you double me, you get 178.
- AnswerRange
- 10
- 99
Use the clues to find the mystery number.
Show answer
Answer: 30
- Clues
- My ones digit is 0.
- If you double me, you get 60.
- AnswerRange
- 10
- 99
Use the clues to find the mystery number.
Show answer
Answer: 14
- Clues
- My tens digit is 1.
- I am an even number.
- My ones digit is 4.
- AnswerRange
- 10
- 99
- Visual
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Use the clues to find the mystery number.
Show answer
Answer: 15
- Clues
- I am less than 30.
- If you double me, you get 30.
- 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="#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: 41
- Clues
- I am less than 56.
- I am not a multiple of 5.
- My digits add up to 5.
- If you double me, you get 82.
- AnswerRange
- 10
- 99
Use the clues to find the mystery number.
Show answer
Answer: 70
- Clues
- My tens digit is 7.
- I am an even number.
- Half of me is 35.
- AnswerRange
- 10
- 99
Use the clues to find the mystery number.
Show answer
Answer: 76
- Clues
- I am an even number.
- If you double me, you get 152.
- AnswerRange
- 10
- 99
Use the clues to find the mystery number.
Show answer
Answer: 44
- Clues
- My tens digit is 4.
- I am a multiple of 4.
- My digits add up to 8.
- AnswerRange
- 10
- 99
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.