The Sudoku Safe: Picture Sudoku and 4x4 Number Sudoku Puzzle
Children solve a 4x4 picture Sudoku using crown, gem, key and vase tiles, then use each treasure's number to read the safe's code. A second 4x4 number Sudoku opens a second lock. Both puzzles teach 'use what you know to find what you do not know'.
Part of the pack
Critical Thinking Worksheets for Ages 7-8: Puzzle Detectives Logic Puzzle Pack
This is page 6 of the pack. Ages 7-8 · Grade 2Ages 7-8 · Year 3Ages 7-8 · Class 2Ages 7-8

Made for your child
Numbers to 20, made for your child
A maths pack with your child's name in it: pictures that explain, practice at three levels, puzzles and story sums about them. Print a new set whenever they finish.
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About this worksheet
- Topic:
- 4x4 picture and number Sudoku
- Skill:
- Sudoku Puzzles (Cognitive - Problem Solving): Solve simple picture and number sudoku puzzles.
- Pack:
- Page 6 of 24 in Critical Thinking Worksheets for Ages 7-8: Puzzle Detectives Logic Puzzle Pack.
How to use this worksheet
Cut out the ten treasure tiles. Place them on the safe door first, and glue only when sure. Read the treasures in squares A to D to make the safe code. Then try the number Sudoku and circle the numbers that make code two.
Materials needed
- Pencil
- Scissors
- Glue stick
Extension activities
- 1Build a 4x4 Sudoku on the floor using four kinds of toys.
- 2Swap and solve each other's number Sudoku.

Written by
Hemsweta Jain · Teacher Cheena
MBA and Early Childhood Educator, teaching since 2014 · Founder of RaisoActive, Mumbai
Every RaisoActive worksheet is designed and checked by the founder before publishing.
Published · Last reviewed
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