Subtraction

Front

What is subtraction?

Back

Subtraction is a mathematical operation that represents the process of taking one number away from another. It is the opposite of addition.

Front

What is the symbol for subtraction?

Back

The symbol for subtraction is '-'. For example, in the expression 5 - 2, the '-' indicates that 2 is being subtracted from 5.

Front

What is the result of a subtraction called?

Back

The result of a subtraction operation is called the 'difference'. For example, in 7 - 3 = 4, the difference is 4.

Front

If you have 10 apples and you give away 3, how many do you have left?

Back

10 - 3 = 7. You have 7 apples left.

Front

What is 15 - 7?

Back

15 - 7 = 8.

Front

What does it mean to subtract zero from a number?

Back

Subtracting zero from a number means the number remains the same. For example, 6 - 0 = 6.

Front

What is the relationship between addition and subtraction?

Back

Addition and subtraction are inverse operations. If you add a number and then subtract the same number, you return to the original number.

Front

What is 20 - 5 - 3?

Back

20 - 5 - 3 = 12. First, subtract 5 from 20 to get 15, then subtract 3 to get 12.

Front

How can you check your subtraction?

Back

You can check your subtraction by adding the difference to the number you subtracted from. If you get the original number, your subtraction is correct.

Front

What is a word problem involving subtraction?

Back

A word problem is a math problem written in words. For example: 'If there are 12 birds in a tree and 4 fly away, how many are left?' The subtraction is 12 - 4 = 8.