Question

1) -36+69+(-17)+(-42)+32;
2) 2¾ − (−1½) + (-3⅚).

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Answer 1

-36+69+(-17)+(-42)+32 = -36 + 69 - 17 - 42 + 32 = 101 - 95 = 6

$2 \frac{3}{4} - ( - 1\frac{1}{2} ) + ( - 3 \frac{5}{6} ) = \\ 2 \frac{9}{12} + 1 \frac{6}{12} - 3 \frac{10}{12} = \\ 3 \frac{15}{12} - 3 \frac{10}{12} = \frac{5}{12}$