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Subtraction means to take away. So any number that you need to know, you take away the other number. Like this....5 take away 2 equals 3. Use your fingers and see. Five fingers take away two fingers leaves three fingers. Got it? Now try it with the symbols. 5-2=3. It's just the opposite of addition. You take away the number rather than add it.

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Q: How do you use subtraction?
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