ThePuzzleLabs

Free printable number grid worksheets

375 print-ready PDF packs across five difficulty levels — 8 puzzles per pack, full answer key on the last page. Square cells are numbers, round cells are operations, and every row and column is an equation read left to right. Download and print. No signup, no ads.

Easy number grid

3×3 equations with addition and subtraction only. Small numbers — great for classrooms and early practice.

Pack 01Pack 02Pack 03Pack 04Pack 05Pack 06Pack 07Pack 08Pack 09Pack 10Pack 11Pack 12Pack 13Pack 14Pack 15Pack 16Pack 17Pack 18Pack 19Pack 20Pack 21Pack 22Pack 23Pack 24Pack 25Pack 26Pack 27Pack 28Pack 29Pack 30Pack 31Pack 32Pack 33Pack 34Pack 35Pack 36Pack 37Pack 38Pack 39Pack 40Pack 41Pack 42Pack 43Pack 44Pack 45Pack 46Pack 47Pack 48Pack 49Pack 50Pack 51Pack 52Pack 53Pack 54Pack 55Pack 56Pack 57Pack 58Pack 59Pack 60Pack 61Pack 62Pack 63Pack 64Pack 65Pack 66Pack 67Pack 68Pack 69Pack 70Pack 71Pack 72Pack 73Pack 74Pack 75

Medium number grid

3×3 equations adding multiplication and division. More candidates to weigh, larger intermediate values.

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Hard number grid

4×4 equations with all four operations and the occasional blank operator to deduce.

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Expert number grid

5×5 equations with several blank operators. Methodical cross-referencing between rows and columns required.

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Einstein number grid

6×6 equations with blank operators and negative numbers. The full toolkit — logic only, no guessing.

Pack 01Pack 02Pack 03Pack 04Pack 05Pack 06Pack 07Pack 08Pack 09Pack 10Pack 11Pack 12Pack 13Pack 14Pack 15Pack 16Pack 17Pack 18Pack 19Pack 20Pack 21Pack 22Pack 23Pack 24Pack 25Pack 26Pack 27Pack 28Pack 29Pack 30Pack 31Pack 32Pack 33Pack 34Pack 35Pack 36Pack 37Pack 38Pack 39Pack 40Pack 41Pack 42Pack 43Pack 44Pack 45Pack 46Pack 47Pack 48Pack 49Pack 50Pack 51Pack 52Pack 53Pack 54Pack 55Pack 56Pack 57Pack 58Pack 59Pack 60Pack 61Pack 62Pack 63Pack 64Pack 65Pack 66Pack 67Pack 68Pack 69Pack 70Pack 71Pack 72Pack 73Pack 74Pack 75

About these worksheets

Each PDF is three pages: two pages of puzzle grids (four per page) followed by a full answer key. Given numbers are printed in bold; blank squares and empty operator circles are left for you to solve with a pencil. All puzzles are computer-verified to have exactly one solution and can be solved through logic alone — no guessing.

Packs are numbered sequentially within each difficulty. Pack 01 contains puzzles 1–8, Pack 02 contains puzzles 9–16, and so on up to Pack 75 (puzzles 593–600). Each difficulty has 600 distinct puzzles total.

If you'd rather solve interactively, play number grids online with hints and step-by-step solutions, or read the number grid rules guide before tackling harder packs. For younger solvers, the number grids for kids page focuses on addition and subtraction only.