问题
解答题
计算下面各题: ①4×120%+
|
答案
①4×120%+
×66 5
=4×
+6 5
×6,6 5
=(4+6)×
,6 5
=10×
,6 5
=12;
②1.25×32×1 4
=1.25×8×4×
,1 4
=(1.25×8)×(4×
),1 4
=10×1,
=10;
③(
-5 12
+3 8
)×241 6
=
×24-5 12
×24+3 8
×24,1 6
=10-9+4,
=5.