hannahemily
what are the rules when you add and subtract negitive and positive numbers?



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amistre64
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..... always add?

hannahemily
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?

amistre64
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subtraction is just "adding a negative"

amistre64
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like signs are always positive
different signs go negative

hannahemily
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ok but what if u subtract a negitive?

amistre64
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35 .... like signs are positive
3+5

hannahemily
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ok umm 4 7 would equal...

amistre64
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47
4+7
74 = ?

hannahemily
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??????????

amistre64
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yeah, that doesnt help me understand your confusion any.

amistre64
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do we have to start back with "what is a number" and go from there?

pottersheep
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++ becomes +
 becomes +
+ becomes 

pottersheep
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i.e.
1   1
= 1 + 1
= 2
whereas 1 +  1
= 1  1
= 0
1 ++ 1
= 1+1
=2

amistre64
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