CRACK THE CODE · GRADE 5
Championship Locker Math Puzzle
Solve the soccer-themed symbol equations to determine the value of each piece of gear and find the secret combination.
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 20. 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.÷2+=
- 4.3+2=CODE 2
- 5.3+2=
- 6.×−=CODE 3
- 7.10−=
- 8.+×=CODE 4
- 9.10−=
- 10.×+×=
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 captains gear locker.
Show answer key (for grown-ups)
Key: pentagon = 13 (hidden) · circle = 6 · triangle = 20 · hexagon = 7 · square = 18 (hidden) · heart = 8 (hidden)
Every symbol is a whole number from 1 to 20.
Vault code: 1022