问题
解答题
计算. (1)(-3)×(-2
(2)(-29
(3)-4×(-
|
答案
(1)原式=3×
-5×13 6
-4×13 6 13 6
=
×(3-5-4)13 6
=-6×13 6
=-13;
(2)原式=(-30+
)×261 13
=-780+2
=-778;
(3)原式=-60×(-
-5 6
+11 5
-1 4
)11 12
=50+12-75+55
=42.
计算. (1)(-3)×(-2
(2)(-29
(3)-4×(-
|
(1)原式=3×
-5×13 6
-4×13 6 13 6
=
×(3-5-4)13 6
=-6×13 6
=-13;
(2)原式=(-30+
)×261 13
=-780+2
=-778;
(3)原式=-60×(-
-5 6
+11 5
-1 4
)11 12
=50+12-75+55
=42.