What are these puzzles good for?

They work well as bell-ringers, early-finisher tasks or homework challenges — each one takes a minute or two but needs real reasoning.

How do I print or save these worksheets as a PDF?

Click Print worksheet and choose your printer, or pick “Save as PDF” as the destination to keep a digital copy. The answer key prints on its own page.

Can I get a fresh set of problems?

Yes. Click New problems for a brand new randomly generated worksheet, as many times as you like.

Is this worksheet generator free?

Yes. Every generator on the site is free to use, with no account, no watermark and unlimited printing for classroom or home use.

Math puzzles worksheet generator

Short puzzles for warm-ups and early finishers: guess-my-number riddles, missing operators, and consecutive-number problems.

Math Puzzles

Name: Date:

1.
Three consecutive numbers add to 45. What are they?
2.
Fill in the missing operator: 17 ___ 7 = 10
3.
I think of a number, multiply it by 6 and add 17. The result is 299. What was my number?
4.
Fill in the missing operator: 19 ___ 11 = 209
5.
Fill in the missing operator: 6 ___ 7 = 13
6.
Three consecutive numbers add to 108. What are they?
7.
Fill in the missing operator: 16 ___ 10 = 6
8.
Fill in the missing operator: 3 ___ 5 = 8
9.
Three consecutive numbers add to 21. What are they?
10.
I think of a number, multiply it by 5 and add 19. The result is 54. What was my number?
11.
Fill in the missing operator: 6 ___ 2 = 12
12.
Three consecutive numbers add to 15. What are they?
13.
Fill in the missing operator: 15 ___ 12 = 27
14.
Fill in the missing operator: 19 ___ 8 = 152
15.
Fill in the missing operator: 6 ___ 4 = 2
16.
Three consecutive numbers add to 45. What are they?
17.
I think of a number, multiply it by 4 and add 18. The result is 226. What was my number?
18.
I think of a number, multiply it by 2 and add 16. The result is 24. What was my number?
19.
Fill in the missing operator: 15 ___ 6 = 21
20.
Fill in the missing operator: 20 ___ 12 = 240

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Math Puzzles — Answer Key

Name: Date:

1.
Three consecutive numbers add to 45. What are they?
14, 15, 16
2.
Fill in the missing operator: 17 ___ 7 = 10
−
3.
I think of a number, multiply it by 6 and add 17. The result is 299. What was my number?
47
4.
Fill in the missing operator: 19 ___ 11 = 209
×
5.
Fill in the missing operator: 6 ___ 7 = 13
+
6.
Three consecutive numbers add to 108. What are they?
35, 36, 37
7.
Fill in the missing operator: 16 ___ 10 = 6
−
8.
Fill in the missing operator: 3 ___ 5 = 8
+
9.
Three consecutive numbers add to 21. What are they?
6, 7, 8
10.
I think of a number, multiply it by 5 and add 19. The result is 54. What was my number?
7
11.
Fill in the missing operator: 6 ___ 2 = 12
×
12.
Three consecutive numbers add to 15. What are they?
4, 5, 6
13.
Fill in the missing operator: 15 ___ 12 = 27
+
14.
Fill in the missing operator: 19 ___ 8 = 152
×
15.
Fill in the missing operator: 6 ___ 4 = 2
−
16.
Three consecutive numbers add to 45. What are they?
14, 15, 16
17.
I think of a number, multiply it by 4 and add 18. The result is 226. What was my number?
52
18.
I think of a number, multiply it by 2 and add 16. The result is 24. What was my number?
4
19.
Fill in the missing operator: 15 ___ 6 = 21
+
20.
Fill in the missing operator: 20 ___ 12 = 240
×

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Frequently asked questions

What are these puzzles good for?: They work well as bell-ringers, early-finisher tasks or homework challenges — each one takes a minute or two but needs real reasoning.
How do I print or save these worksheets as a PDF?: Click Print worksheet and choose your printer, or pick “Save as PDF” as the destination to keep a digital copy. The answer key prints on its own page.
Can I get a fresh set of problems?: Yes. Click New problems for a brand new randomly generated worksheet, as many times as you like.
Is this worksheet generator free?: Yes. Every generator on the site is free to use, with no account, no watermark and unlimited printing for classroom or home use.