Workbook Detail
Number Detective Hard — Set 1
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"I am less than 48.",
"My tens digit is 3.",
"If you double me, you get 78."
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"answer": 39,
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"I am a multiple of 2.",
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"Half of me is 47."
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"answer": 94,
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"id": 3,
"type": "number-detective",
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"If you double me, you get 104."
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"answer": 52,
"correctAnswer": "52",
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"question": "Use the clues to find the mystery number."
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{
"id": 4,
"type": "number-detective",
"clues": [
"If you double me, you get 94."
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"answer": 47,
"correctAnswer": "47",
"answerRange": [
10,
99
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"question": "Use the clues to find the mystery number."
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{
"id": 5,
"type": "number-detective",
"clues": [
"I am not a multiple of 5.",
"I am less than 67.",
"If you double me, you get 108."
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"answer": 54,
"correctAnswer": "54",
"answerRange": [
10,
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"id": 6,
"type": "number-detective",
"clues": [
"I am not a multiple of 3.",
"I am an even number.",
"If you double me, you get 56."
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"answer": 28,
"correctAnswer": "28",
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{
"id": 7,
"type": "number-detective",
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"My ones digit is 1.",
"My digits add up to 6."
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"answer": 51,
"correctAnswer": "51",
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10,
99
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"question": "Use the clues to find the mystery number."
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{
"id": 8,
"type": "number-detective",
"clues": [
"My digits add up to 7.",
"I am a multiple of 5.",
"I am less than 38."
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"answer": 25,
"correctAnswer": "25",
"answerRange": [
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99
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"question": "Use the clues to find the mystery number."
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"id": 9,
"type": "number-detective",
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"My ones digit is 9.",
"I am less than 33.",
"My tens digit is 1."
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"answer": 19,
"correctAnswer": "19",
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"I am not a multiple of 3.",
"I am greater than 86.",
"I am an odd number.",
"My digits add up to 16."
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"answer": 97,
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"type": "number-detective",
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"I am less than 46.",
"If you double me, you get 86."
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"answer": 43,
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"question": "Use the clues to find the mystery number."
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"type": "number-detective",
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"My digits add up to 2.",
"I am an odd number."
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"answer": 11,
"correctAnswer": "11",
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"id": 13,
"type": "number-detective",
"clues": [
"If you double me, you get 106."
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"answer": 53,
"correctAnswer": "53",
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"question": "Use the clues to find the mystery number."
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{
"id": 14,
"type": "number-detective",
"clues": [
"I am not a multiple of 3.",
"I am greater than 68.",
"I am a multiple of 4.",
"If you double me, you get 160."
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"answer": 80,
"correctAnswer": "80",
"answerRange": [
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"question": "Use the clues to find the mystery number."
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"id": 15,
"type": "number-detective",
"clues": [
"I am a multiple of 5.",
"I am an odd number.",
"My digits add up to 8."
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"answer": 35,
"correctAnswer": "35",
"answerRange": [
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"question": "Use the clues to find the mystery number."
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"id": 16,
"type": "number-detective",
"clues": [
"I am an even number.",
"If you double me, you get 180."
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"answer": 90,
"correctAnswer": "90",
"answerRange": [
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"question": "Use the clues to find the mystery number."
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{
"id": 17,
"type": "number-detective",
"clues": [
"My ones digit is 9.",
"I am a multiple of 3.",
"My digits add up to 18."
],
"answer": 99,
"correctAnswer": "99",
"answerRange": [
10,
99
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"question": "Use the clues to find the mystery number."
},
{
"id": 18,
"type": "number-detective",
"clues": [
"My digits add up to 13.",
"I am less than 61.",
"If you double me, you get 98."
],
"answer": 49,
"correctAnswer": "49",
"answerRange": [
10,
99
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"question": "Use the clues to find the mystery number."
},
{
"id": 19,
"type": "number-detective",
"clues": [
"I am not a multiple of 5.",
"My digits add up to 9.",
"I am an odd number.",
"If you double me, you get 126."
],
"answer": 63,
"correctAnswer": "63",
"answerRange": [
10,
99
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"question": "Use the clues to find the mystery number."
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{
"id": 20,
"type": "number-detective",
"clues": [
"I am greater than 32.",
"My digits add up to 9.",
"My ones digit is 5."
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"answer": 45,
"correctAnswer": "45",
"answerRange": [
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"question": "Use the clues to find the mystery number."
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}Teaching Notes
- Use the clues to find the mystery number.
- Use the clues to find the mystery number.
- Use the clues to find the mystery number.
- Use the clues to find the mystery number.
- Use the clues to find the mystery number.
- Use the clues to find the mystery number.
- Use the clues to find the mystery number.
- Use the clues to find the mystery number.
- Use the clues to find the mystery number.
- Use the clues to find the mystery number.
- Use the clues to find the mystery number.
- Use the clues to find the mystery number.
- Use the clues to find the mystery number.
- Use the clues to find the mystery number.
- Use the clues to find the mystery number.
- Use the clues to find the mystery number.
- Use the clues to find the mystery number.
- Use the clues to find the mystery number.
- Use the clues to find the mystery number.
- Use the clues to find the mystery number.
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.
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Yes — every worksheet includes a complete answer key. Print it separately or view it on screen.