问题
解答题
计算: (1)(3
(2)
|
答案
(1)原式=(6
-123
)÷23 3
=-6
÷23 3
=-3;
(2)原式=4
-9×3
×2 3
-
×1 45 5 3 1 3
=4
-6×3
-3 9 3 3
=4
-3
-2 3 3 3 3
=3
.3
计算: (1)(3
(2)
|
(1)原式=(6
-123
)÷23 3
=-6
÷23 3
=-3;
(2)原式=4
-9×3
×2 3
-
×1 45 5 3 1 3
=4
-6×3
-3 9 3 3
=4
-3
-2 3 3 3 3
=3
.3