问题
解答题
计算: (1)-
(2)
(3)
(4)(
|
答案
(1)原式=-
•3
=-16×36
×3
×16
=-36
×4×6=-243
;3
(2)原式=
÷5 3
×7 3
=7 5
=1;
×5 3
×3 7 7 5
(3)原式=4
-33
×6
+(3-1 2
)×(1+3
)=43 3
-3
+(3-3 6 2
)×3
=43+ 3 3
-3
+3 6 2
;1 2
(4)原式=6-1+2
-25
=5.5