Addition and Subtraction 2nd Grade

Front

What is addition?

Back

Addition is the mathematical operation of combining two or more numbers to get a total or sum.

Front

What is subtraction?

Back

Subtraction is the mathematical operation of taking one number away from another to find the difference.

Front

What is the sum of 5 and 7?

Back

The sum of 5 and 7 is 12.

Front

What is the sum of 8 and 6?

Back

The sum of 8 and 6 is 14.

Front

What is the sum of 7 and 8?

Back

The sum of 7 and 8 is 15.

Front

What is the difference when you subtract 8 from 14?

Back

The difference when you subtract 8 from 14 is 6.

Front

What is the difference when you subtract 11 from 20?

Back

The difference when you subtract 11 from 20 is 9.

Front

What is a number line?

Back

A number line is a straight line with numbers placed at equal intervals along its length, used to represent numbers visually.

Front

How do you represent addition on a number line?

Back

To represent addition on a number line, you start at the first number and move to the right by the value of the second number.

Front

How do you represent subtraction on a number line?

Back

To represent subtraction on a number line, you start at the first number and move to the left by the value of the second number.