CRACK THE CODE · GRADE 3
The Secret Tuna Pantry
Solve the math equations to find which numbers the playful kittens are hiding so you can crack the code to the locked seafood pantry.
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−=
- 2.2+=CODE 1
- 3.2+=
- 4.10+=CODE 2
- 5.5−=
- 6.×+=CODE 3
- 7.10+=
- 8.×+=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 locked seafood pantry.
Show answer key (for grown-ups)
Key: diamond = 2 · heart = 7 (hidden) · triangle = 10 · lightning bolt = 9 · moon = 12 (hidden) · hexagon = 8
Every symbol is a whole number from 1 to 12.
Vault code: 6259