Addition and Subtraction Fluency Flashcard

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 taking one number away from another.

Front

How much is 20 + 20 + 20?

Back

60

Front

What is the missing number in 8 + __ = 15?

Back

7

Front

How much is 100 + 10?

Back

110

Front

What is mental math?

Back

Mental math is doing calculations in your head without using paper or a calculator.

Front

What does the term 'sum' mean?

Back

The sum is the result of adding two or more numbers together.

Front

What does the term 'difference' mean?

Back

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

Front

How much is 73 - 12?

Back

61

Front

What is a number line?

Back

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