Puzzle Detail
Math Worksheets Math Brain Teasers — Set 4
| 4- | 11+ | 1- | 7= | |||||
| 1- | 10+ | 2- | ||||||
| 24+ | 9=9 | 14+ | 1= | 1- | 2 | 7 | ||
| 5- | 2= | 3 | 8= | |||||
| 4= | 11+ | 1- | 7/ | |||||
| 22+ | 72x | 1- | 2= | |||||
| 4x2 | 10+ | 6- | 5= | |||||
| 5= | 11+ | 24+ | ||||||
| 8+ | 2/ | 7/ | 54x6 |
Show solution
| 5 | 8 | 2 | 9 | 6 | 4 | 1 | 7 | 3 |
| 9 | 3 | 5 | 7 | 2 | 6 | 8 | 1 | 4 |
| 4 | 9 | 3 | 6 | 8 | 1 | 5 | 2 | 7 |
| 7 | 4 | 9 | 1 | 5 | 2 | 3 | 8 | 6 |
| 6 | 7 | 4 | 2 | 3 | 8 | 9 | 5 | 1 |
| 1 | 6 | 7 | 8 | 9 | 5 | 4 | 3 | 2 |
| 8 | 2 | 1 | 3 | 7 | 9 | 6 | 4 | 5 |
| 2 | 1 | 6 | 5 | 4 | 3 | 7 | 9 | 8 |
| 3 | 5 | 8 | 4 | 1 | 7 | 2 | 6 | 9 |
Solver Notes
Our math brain teasers use the mathdoku puzzle format to challenge arithmetic reasoning and logical deduction simultaneously.
Are mathdoku puzzles good brain teasers?
Yes — mathdoku requires you to combine arithmetic calculation with logical elimination, engaging both analytical and numerical thinking.
Who are math brain teasers suitable for?
They suit ages 8 and up — students, adults, and anyone who enjoys keeping their mental math sharp.
Are solutions included?
Yes — every brain teaser puzzle comes with a complete solution.