Breaking Apart to Subtract

Front

What does it mean to break apart a number?

Back

Breaking apart a number means to split it into smaller parts to make subtraction easier.

Front

What is 14 broken apart into 10 and 4?

Back

14 = 10 + 4

Front

What is 17 broken apart into 10 and 7?

Back

17 = 10 + 7

Front

What is 50 minus 10?

Back

50 - 10 = 40

Front

What is the best way to break apart 14?

Back

10 and 4

Front

What is the best way to break apart 17?

Back

10 and 7

Front

If I have 10 apples and I eat 4, how many do I have left?

Back

10 - 4 = 6 apples left.

Front

What is the first step in breaking apart a number to subtract?

Back

Identify a round number that is easy to subtract.

Front

What is 30 minus 20?

Back

30 - 20 = 10

Front

What is 25 minus 5?

Back

25 - 5 = 20