CRACK THE CODE · GRADE 4
The Celestia Meadow Code
Solve the mathematical equations by finding the numerical value of each enchanted shape to unlock the ancient starlight vault.
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.×=CODE 2
- 5.100+=
- 6.×+=CODE 3
- 7.×−=
- 8.3+2=CODE 4
- 9.×=
- 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 star-prism treasure chest.
Show answer key (for grown-ups)
Key: diamond = 14 · pentagon = 15 (hidden) · star = 6 · moon = 10 · hexagon = 12 (hidden) · circle = 8 (hidden)
Every symbol is a whole number from 1 to 15.
Vault code: 0024