问题
解答题
计算: (1)-40-(-19)+(-24) (2)(-5)×(-8)-(-28)÷4 (3)(
(4)-22-(-2)2-23×(-1)2011 (5)-32÷
|
答案
(1)-40-(-19)+(-24)
=-40+19-24
=-45;
(2)(-5)×(-8)-(-28)÷4
=40+7
=47;
(3)(
+1 2
-5 6
)×127 12
=6+10-7
=9;
(4))-22-(-2)2-23×(-1)2011
=-4-4+8,
=0;
(5)-32÷
+|-4|×0.52+29 4
×(-12 9
)21 2
=-4+1+5
=2.