问题
解答题
计算 (1) (
(2)-22×(-
|
答案
(1)(
+5 12
-2 3
)×(-12)3 4
=
×(-12)+5 12
×(-12)-2 3
×(-12)3 4
=-5-8+9
=-13+9
=-4;
(2)-22×(-
)+8÷(-2)21 2
=-4×(-
)+8÷41 2
=2+2
=4.
计算 (1) (
(2)-22×(-
|
(1)(
+5 12
-2 3
)×(-12)3 4
=
×(-12)+5 12
×(-12)-2 3
×(-12)3 4
=-5-8+9
=-13+9
=-4;
(2)-22×(-
)+8÷(-2)21 2
=-4×(-
)+8÷41 2
=2+2
=4.