Mathematics
isisgirl
2015-11-10 16:45:42
Can you please help me
ANSWERS
marissacap
2015-11-10 20:21:41

For the first two, 1-2 =-1 . -1-1=-2, -2+0=-2, -2-1=-3, -3+3=0, 0-1=-1, -1-3=-4, -4+1=-3=total

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