问题
解答题
计算: (1)84-[
(2)-32×(-
|
答案
(1)原式=84-(-
-3 4
+7)×125 6
=84+
×12+3 4
×12-7×125 6
=84+9+10-84
=19;
(2)原式=-9×
+1 9
×(-24)-3 4
×(-24)+1 6
×(-24)3 8
=-1-18+4-9
=-28+4
=-24.
计算: (1)84-[
(2)-32×(-
|
(1)原式=84-(-
-3 4
+7)×125 6
=84+
×12+3 4
×12-7×125 6
=84+9+10-84
=19;
(2)原式=-9×
+1 9
×(-24)-3 4
×(-24)+1 6
×(-24)3 8
=-1-18+4-9
=-28+4
=-24.