问题
解答题
用你喜欢的方法计算下面各题 (1)201-5406÷51 (2)(
(3)
(4)6.48÷[(3.3-2.7)×0.9]. |
答案
(1)201-5406÷51,
=201-106,
=95;
(2)(
+5 9
)×(2 3
-7 8
),5 16
=
×11 9
,9 16
=
;11 16
(3)
×7 8
+13 9
÷8,13 9
=
×7 8
+13 9
×13 9
,1 8
=(
+7 8
)×1 8
,13 9
=1×
,13 9
=
;13 9
(4)6.48÷[(3.3-2.7)×0.9],
=6.48÷[0.6×0.9],
=6.48÷0.54,
=12.