问题
解答题
灵活计算,(能简便计算的要用简便方法计算). 36×(
8×(36×125)
〔1-(
|
答案
(1)36×(
+2 9
)7 12
=36×
+36×2 9
,7 12
=8+21,
=29;
(2)8×(36×125)
=8×125×36,
=1000×36,
=36000;
(3)
-3 4
×7 10
+5 7 1 2
=
-3 4
+1 2
,1 2
=
;3 4
〔1-(
-2 3
)〕÷1 2 5 12
=(1-
)÷1 6
,5 12
=
÷5 6
,5 12
=2.