Mastering Addition and Subtraction

Front

What is addition?

Back

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

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What is subtraction?

Back

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

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Back

Front

What do you get when you add 10 to 450?

Back

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Front

What is the difference when you subtract 10 from 620?

Back

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

What does 'mentally add' mean?

Back

Mentally add means to perform addition in your head without using paper or a calculator.

Front

What is a fact family in addition and subtraction?

Back

A fact family is a group of related addition and subtraction facts using the same numbers.