CRACK THE CODE · GRADE 2
Crack the Vault Code
Someone locked the vault with a 4-digit code. Work out what each shape is worth and crack it.
Each shape stands for a number. 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
=10
=6
=3
=8
=4
Every symbol is a whole number from 1 to 10. A number in front of a shape means multiply: 2 stars = 2 x star.
Crack these
- 1.2=
- 2.2+2=CODE 1
- 3.2+=
- 4.++=CODE 2
- 5.2+2=
- 6.2−=CODE 3
- 7.3−=
- 8.2=CODE 4
- 9.?+=13Which shape?
- 10.+?=7Which shape?
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 vault.
Show answer key (for grown-ups)
Key: square = 10 · circle = 6 · moon = 3 · diamond = 8 · pentagon = 4
Every symbol is a whole number from 1 to 10.
1.2 x square20
2.2 x circle + 2 x pentagon20
3.2 x square + circle26
4.moon + diamond + pentagon15
5.2 x square + 2 x pentagon28
6.2 x diamond - square6
7.3 x diamond - moon21
8.2 x pentagon8
9.? + moon = 13square
10.moon + ? = 7pentagon
Vault code: 0568