Easy 4×4 Number Sudoku
Four small grids and only the numbers 1 to 4: this easy 4×4 number sudoku is a first step into classic sudoku for children aged 6-7.
1 A4 page · for home and classroom use
Sudoku 4×4 — easy
How to use this worksheet
- Start with the top-left puzzle. Its top row reads 2, 1, empty, 4, so the missing number is 3.
- Look at the bottom-right puzzle: its top row is already full, 4, 3, 1, 2, a good picture of the rule.
- Fill each empty square by checking its row, its column and its bold 2×2 box.
- Compare with the solution page: added numbers are red there.
What this worksheet teaches
Each puzzle is a 4×4 grid with four boxes of 2×2 squares, and every row, column and box must contain 1, 2, 3 and 4 exactly once. Ten of the sixteen numbers are given, so six squares are empty in each puzzle, and every puzzle has one correct solution. The numbers here are only symbols; there is no adding. The real skill is logical thinking: noticing what is missing and ruling out what cannot fit.
Only four numbers
With four numbers, a row with three filled squares always gives away the fourth. That makes this size ideal for learning the rule. The name sudoku comes from Japanese and roughly means "the digits must stay single", which is exactly the rule: in each row, column and box, every number appears once.