CRACK THE CODE · GRADE 3
Savannah Canopy Code Breaker
Solve the equations by figuring out which numbers are hidden behind the spots and leaves to discover the four-digit code.
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
- 1.5−=
- 2.×+=CODE 1
- 3.×=
- 4.3−=CODE 2
- 5.×=
- 6.++=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 supply chest containing.
Show answer key (for grown-ups)
Key: triangle = 4 (hidden) · hexagon = 9 (hidden) · lightning bolt = 10 · moon = 2 · cross = 7 · circle = 5
Every symbol is a whole number from 1 to 12.
Vault code: 8266