Author: frankie

The Witches Missing Number Addition.

3 + = 7 + 4 = 10 5 + = 10 + 3 = 7 6 + = 11

8 + = 12 + 14 = 20 6 + = 12 + 9 = 14 8 + = 16

15 + = 20 + 12 = 18 6 + = 20 + 10 = 24 4 + = 19

25 + = 30 + 15 = 30 10 + = 30 + 10 = 29 20 + = 40

Unfortunately the Witches have used their magic to make some of the numbers on this page disappear, can you work out what numbers are missing?

Explain how you worked out the missing numbers: