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Reply to "how do I explain addition and subtraction of negative numbers?"
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[quote=Anonymous]Use money as an example. Negative numbers are debt in this scenario. So explain that if you have $2, that is a +2. If you have a debt of $2, that is -2. So what happens when you take away a debt of $2? So you are effectively subtracting -2. So if you are planning on repaying a $2 debt to your friend but then they say never mind and cancel the debt, you are effectively $2 richer (+2) [/quote]
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