CRACK THE CODE · GRADE 2
Captain Blackbeard's Secret Cipher
Solve the math equations by matching each pirate symbol to its secret number to reveal the four-digit code that opens the treasure chest.
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
=6
=10
=8
=1
=7
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+=CODE 1
- 3.2=
- 4.++=CODE 2
- 5.3=
- 6.3=CODE 3
- 7.2+2=
- 8.+=CODE 4
- 9.?+=8Which shape?
- 10.?+=8Which 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 brass-banded wooden sea.
Show answer key (for grown-ups)
Key: hexagon = 6 · moon = 10 · cross = 8 · lightning bolt = 1 · triangle = 7
Every symbol is a whole number from 1 to 10.
1.cross + 2 x moon28
2.2 x cross + lightning bolt17
3.2 x triangle14
4.cross + hexagon + lightning bolt15
5.3 x moon30
6.3 x triangle21
7.2 x cross + 2 x lightning bolt18
8.lightning bolt + moon11
9.? + triangle = 8lightning bolt
10.? + lightning bolt = 8triangle
Vault code: 7511