Integer Addition and Subtraction with Counters

Front

What is the sum of -5 and 3?

Back

-2

Front

What is the sum of 5 and -3?

Back

2

Front

What is the sum of -5 and -3?

Back

-8

Front

What is the sum of -9 and -5?

Back

-14

Front

What is a zero pair?

Back

1 negative & 1 positive

Front

What is the sum of 4 and -6?

Back

-2

Front

What is the sum of -2 and 2?

Back

0

Front

What is the sum of -3 and 1?

Back

-2

Front

What is the sum of 7 and -10?

Back

-3

Front

What is the sum of -4 and 4?

Back

0