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计算(1)(-3)+(-4)-(11)-(-9)(2)(-81)÷214×(-49)÷(-1
问题详情
计算
(1)(-3)+(-4)-(11)-(-9)
(2)(-81)÷2
(3)8-23÷(-4)3-
(4)-32×2-3×(-2)2
(5)(
参考答案
(1)(-3)+(-4)-(+11)-(-9)
=-3-4-11+9
=-18+9
=-9;
(2)(-81)÷214×(-49)÷(-16)
=-81×49×49×116
=-1;
(3)8-23÷(-4)3-18
=8+8÷64-18
═8+18-18
=8;
(4)-32×2-3×(-2)2
=-9×2-3×4
=-18-12
=-30;
(5)(12-59+56-712)×(-36)
=-18+20-30+21
=-48+41
=-7.
考点: