Author: frankie

World War II Aircraft: Addition and Subtraction.

Can you work out what numbers the World War II aircraft are covering?

3 + = 10 10 - 7 = 3
6 + = 10 10 - 6 =
2 + = 10 10 - 2 =
5 + = 10 10 - 5 =
1 + = 10 m 10 - 1 =
30 + = 100 100 - 30 =
60 + = 100 100 - 60 =
20 + = 100 100 - 20 =