CRACK THE CODE · GRADE 5
Silph Co Security Terminal
Solve the algebraic Pokeball equations to decrypt the security system and recover the stolen prototype Master Ball.
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
- 3.3+2=
- 4.+×=CODE 2
- 5.×−=
- 6.3+2=CODE 3
- 7.÷2+=
- 8.÷2+=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 prototype master ball.
Show answer key (for grown-ups)
Key: lightning bolt = 15 · moon = 7 (hidden) · pentagon = 4 (hidden) · hexagon = 11 · triangle = 13 · circle = 16 (hidden)
Every symbol is a whole number from 1 to 20.
Vault code: 3995