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六下数学计算练习
一.口算。
2.6-= ×= + = ×50%= ×=
1÷25%= 60÷80%= 16÷= 1.5÷3%= 30÷=
270÷18= 23.9÷8≈ (
-(
+
)=
×21=
2.2×9.9= ( )∶
=
7×
÷7×
=
÷
×
×0=
计算下面各题,怎样简便就怎样算.
24×(
+
-
) [
×(
-0.25)+
]÷0.5 5×(
+
)×17
+×(-) 0.8 ÷[(
+0.4)×
]
÷[(
-
)×
]
÷
+
×
÷[
×(0.2+
)]
(
+
)×8+
333÷[7.2×(-)] (
-
)÷
÷
+
÷
(
×
+
)÷
(62.8-(12.8-4.6))×
六下数学计算练习
一.口算。
647-(147+289)=
= 100÷12.5÷8=
=
二、计算下面各题,怎样简便就怎样算.
× (
-(
-
)
+(4
-3
)÷
(8
-10.5×
)÷4
3
÷[5
-4.5×(20%+
)]
×
+
÷13 (
+
)×19×17
÷6+
×
2-(
+
)×
(
×
+
)÷
$