问题
解答题
计算: (1)(
(2)(-2)2+(-2)÷(-
|
答案
(1)原式=
×(-48)+1 6
×(-48)-1 36
×(-48)+1 4
×(-48)1 12
=-8+(-
)-(-12)+(-4)4 3
=-8-
+12-44 3
=-
;4 3
(2)原式=4+(-2)×(-
)+3 2
×(-16)1 16
=4+3-1
=6.
计算: (1)(
(2)(-2)2+(-2)÷(-
|
(1)原式=
×(-48)+1 6
×(-48)-1 36
×(-48)+1 4
×(-48)1 12
=-8+(-
)-(-12)+(-4)4 3
=-8-
+12-44 3
=-
;4 3
(2)原式=4+(-2)×(-
)+3 2
×(-16)1 16
=4+3-1
=6.