Question

A)-8+{-5+[(8-12)+(13+12)]-10}
B)3-{2+(11-15)-[5+(-3+1)]+8}
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Answer 1

A)-8+{-5+[(8-12)+(13+12)]-10}

-8 +{-5 +[-4 + 27] -10

-8 + {-5 + 23 -10}

-8 + 8

=0

B)3-{2+(11-15)-[5+(-3+1)]+8}

3-{2 + (-4) -[5 + (-2)]+8

3- {-2 -[3] +8

3+ 2 -3 +8 =10