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Mae Adventures · Worksheets
Grade 3-4

Secret Mystery Puzzle: Cipher

Subtracting Hundreds

Solve each math problem. Write your answer on the line. Find that number in the Key and write the matching letter in the box. Read your letters in order to decode the secret message!

Key

100 = T 200 = H 300 = I 400 = N 500 = K 600 = B 700 = G
1
300 − 200
2
500 − 300
3
700 − 400
4
900 − 500
5
800 − 300
6
900 − 300
7
500 − 200
8
900 − 200

❓ What do you say before tackling the biggest numbers?

Solve the problems to reveal the answer!

Answer

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