A-A+
计算(1)22-(-4)+(-2)+4;(2)-1-2×(-3);(3)(-81)÷94×4
问题详情
计算
(1)22-(-4)+(-2)+4;
(2)-1-2×(-3);
(3)(-81)÷
(4)(
(5)0-32÷[(-2)3-(-4)];
(6)(-3)2-[(-
(7)-14÷(-5)2×(-
(8)-3×(-
参考答案
(1)22-(-4)+(-2)+4
=22+4-2+4
=30-2
=28;
(2)-1-2×(-3)
=-1+6
=5;
(3)(-81)÷94×49÷(-136)
=81×49×49×36
=576;
(4)(79-56+34)×(-36)
=-79×36+56×36-34×36
=-28+30-27
=-55+30
=-25;
(5)0-32÷[(-2)3-(-4)]
=0-9÷[(-8)-(-4)]
=0-9÷(-4)
=0+2.25
=2.25;
(6)(-3)2-[(-23)+(-14)]÷112
=9-[(-23)+(-14)]×12
=9+8+3
=20;
(7)-14÷(-5)2×(-53)+|0.8-1|
=-1÷25×(-53)+15
=115+15
=415;
(8)-3×(-23)2-4×(1-23)-8÷(23)2
=-3×49-4×13-8÷49
=-113-113-18
=-2023.
考点: