问题
解答题
计算题 (1)(-2)3+(-3)×[(-4)2+2]-(-3)2÷(-2); (2)(
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答案
(1)(-2)3+(-3)×[(-4)2+2]-(-3)2÷(-2)
=-8+(-3)×18+9 2
=-62+9 2
=-
;115 2
(2)(
+11 8
-2.75)×(-24)+(-1)2001 3
=(
+1 8
-4 3
)×(-24)+111 4
=
×(-24)+1 8
×(-24)-4 3
×(-24)+111 4
=-3-32+66+1
=32.