问题
解答题
计算 (1)(-0.9)+(+4.4)+(-8.1)+(+5.6) (2)|-
(3)-22-(-3)3×(-1)4-(-1)5 (4)(-36)×(
(5)1
(6)-0.85×
|
答案
(1)原式=(-0.9-8.1)+(4.4+5.6)=-9+10=1;
(2)原式=
÷7 9
-7 15
×16=1 3
-5 3
=-16 3
;11 3
(3)原式=-4+27+1=24;
(4)原式=-9+30-28+2=-5;
(5)原式=
×(-15 8
)×(-1 10
)×(-10 3
)=-4 13
;5 26
(6)原式=0.85×(
-9 17
)+14×(8 17
-2 7
)=3 7
×17 50
-2=-11 17
.49 50