Answer:
#1=15 #2=-9 #3=44
Explanation:
1/2 times 2 = 1 -2times -1=2 (10)^2 +4(7)(-2)
1 times 8= 8 2(-6)+3 100+4(7)(-2)
8+7=15 2times -6=-12 100+28(-2)
-12+3=-9 100+-56
44
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