Addition and subtraction

Front

What is addition?

Back

Addition is the process of finding the total or sum by combining two or more numbers.

Front

What is subtraction?

Back

Subtraction is the process of finding the difference between two numbers by taking one number away from another.

Front

What is the sum of 73 and 44?

Back

The sum of 73 and 44 is 117.

Front

What is the difference when you subtract 5 from 51?

Back

The difference is 46.

Front

What is the result of 798 minus 457?

Back

The result is 341.

Front

What do you get when you add 1225 and 3762?

Back

You get 4987.

Front

If you have 28 and you take away 5, what do you have left?

Back

You have 23 left.

Front

What is a number line?

Back

A number line is a straight line with numbers placed at equal intervals, used to represent numbers and their relationships.

Front

What does it mean to regroup in addition?

Back

Regrouping in addition means to carry over a value from one column to the next when the sum exceeds 10.

Front

What does it mean to borrow in subtraction?

Back

Borrowing in subtraction means to take 1 from the next higher place value when the top number is smaller than the bottom number.