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Subtraction is the taking of one number or amount away from another.
It is the opposite of addition.
To identify the missing number, the given number is subtracted from the total number.
Example
Write the answer to the subtraction.
| 12 | - | 6 | = | ? |
You can use the number line to help you.
Answer
12 - 6 = 6
If you use the number line, pop your finger on the number 12 and move it back to the left 6 places. You should get to 6.
Remember, you always move to the left on a number line when you are subtracting.
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