CRACK THE CODE · GRADE 5
Santa's Workshop Code Breaker
Determine the numerical value of each holiday symbol to discover the four-digit combination that unlocks the North Pole 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 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
- 1.10−=
- 2.×−×=CODE 1
- 3.(+)×=
- 4.×÷=CODE 2
- 5.×+×=
- 6.+×=CODE 3
- 7.××=
- 8.××=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 santas master toy.
Show answer key (for grown-ups)
Key: lightning bolt = 14 · hexagon = 12 · triangle = 15 · cross = 19 (hidden) · star = 8 (hidden) · heart = 16 (hidden)
Every symbol is a whole number from 1 to 20.
Vault code: 0820