问题
解答题
(1)-1
(2)(-
(3)-48÷82-(-25)÷(-6)2 (4)-3-[-5+(1-0.2×
|
答案
(1)原式=-
×(5 3
-3 6
)÷4 6
=-10 9
×(-5 3
)×1 6
=9 10
;1 4
(2)原式=(-36)×(-
)+(-36)×5 6
-(-36)×3 4
=30-27+14=17;7 18
(3)原式=-48÷64-(-25)÷36=-
+3 4
=-25 36
;1 18
(4)原式=-3-[-5+(1-
)×(-3 25
)]=-3-(-5-1 2
×22 25
)=-3-(-1 2
-75 25
)=-3+11 25
=86 25
.11 25