CRACK THE CODE · GRADE 3
Championship Trophy Code Breaker
Find the hidden number values for the soccer balls, cleats, and goalie gloves to unlock the team equipment trunk.
Each shape stands for a number. Work out the missing ones first, then solve the shape equations and read off the 4-digit code. Do it here or print the sheet — the answer key comes with it.
The key
Every symbol is a whole number from 1 to 12. A number in front of a shape means multiply: 2 stars = 2 x star.
Find the missing values
Some shapes in the key are missing. Use these equations to work them out, then write them into the key. Take them in order.
Crack these
- 1.×+=
- 2.×+=CODE 1
- 3.×−=
- 4.×=CODE 2
- 5.5−=
- 6.2+=CODE 3
- 7.10+=
- 8.×=CODE 4
- 9.×−=
- 10.5−=
The vault code
Take the ones digit of your answers to problems 2, 4, 6, 8 (the ones tagged CODE 1–4), in that order. That opens the locked metal team.
Show answer key (for grown-ups)
Key: circle = 9 · hexagon = 8 · cross = 5 · star = 7 (hidden) · triangle = 3 · heart = 2 (hidden)
Every symbol is a whole number from 1 to 12.
Vault code: 2566