Puzzle Detail
Math Worksheets Math Brain Teasers — Set 5
| 9x | 3- | 11+2 | 7= | |||||
| 4/ | 3- | |||||||
| 3 | 3/ | 3- | 16+ | 4=4 | 3/ | |||
| 2= | 17+ | 14+ | ||||||
| 3- | 9+ | 4= | 6= | 3- | 8= | 9 | 2 | |
| 7= | 5= | 3= | 9x | 2- | ||||
| 6+ | 7/ | 4- | 9+ | |||||
| 6= | 48x | 12x | 2= | 1 | ||||
| 9/ | 23+ | 96x |
Show solution
| 8 | 1 | 9 | 5 | 6 | 4 | 2 | 3 | 7 |
| 3 | 8 | 1 | 7 | 2 | 5 | 4 | 6 | 9 |
| 2 | 6 | 3 | 1 | 5 | 9 | 7 | 4 | 8 |
| 5 | 4 | 2 | 3 | 9 | 8 | 1 | 7 | 6 |
| 7 | 5 | 4 | 6 | 1 | 3 | 8 | 9 | 2 |
| 9 | 7 | 5 | 2 | 8 | 6 | 3 | 1 | 4 |
| 4 | 2 | 6 | 8 | 7 | 1 | 9 | 5 | 3 |
| 6 | 3 | 8 | 9 | 4 | 7 | 5 | 2 | 1 |
| 1 | 9 | 7 | 4 | 3 | 2 | 6 | 8 | 5 |
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.