CRACK THE CODE · GRADE 4
The Varsity Trophy Case Cipher
Use your math skills to find the number value of each cheer symbol and decode the four-digit combination to the team trophy cabinet.
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 15. 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
- 1.10−=
- 2.×+=CODE 1
- 3.×=
- 4.10−=CODE 2
- 5.×−=
- 6.×+=CODE 3
- 7.(+)×=
- 8.100+=CODE 4
- 9.(+)×=
- 10.100+=
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 brass megaphone lock.
Show answer key (for grown-ups)
Key: circle = 8 · cross = 14 (hidden) · triangle = 5 (hidden) · heart = 6 · diamond = 15 (hidden) · hexagon = 12
Every symbol is a whole number from 1 to 15.
Vault code: 5622