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Subtracting means taking some away to get a smaller number.

Subtracting means taking some away to get a smaller number.

If you have 5 balloons and 2 pop, you take 2 away and 3 are left. Taking away always makes the amount smaller.

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The minus sign (−) tells you to take away. The minus sign (−) tells you to take away. When you take zero away, the number stays the same. When you take zero away, the number stays the same. If you take a number away from itself, you are left with zero. If you take a number away from itself, you are left with zero. Subtraction is the opposite of addition — it undoes it. Subtraction is the opposite of addition — it undoes it. You can check subtraction by adding the answer back. You can check subtraction by adding the answer back.