Adding & Subtracting

Front

What is the result of adding two numbers together?

Back

The result of adding two numbers together is called the sum.

Front

What is the result of subtracting one number from another?

Back

The result of subtracting one number from another is called the difference.

Front

What is the sum of 8 and 7?

Back

15

Front

What is 11 minus 2?

Back

9

Front

What is 61 minus 25?

Back

36

Front

What is 5 minus 2?

Back

3

Front

What is the sum of 6 and 6?

Back

12

Front

How do you perform addition with two-digit numbers?

Back

Align the numbers by place value and add each column, carrying over if necessary.

Front

How do you perform subtraction with two-digit numbers?

Back

Align the numbers by place value and subtract each column, borrowing if necessary.

Front

What is the commutative property of addition?

Back

The commutative property of addition states that changing the order of the addends does not change the sum.