直接写出得数.
479+321= 4﹣0.78= 8÷0.01= 8×37.5%=(+
)×12=
÷(
+
)= 1﹣
×
= 1.25×0.16×8=
×
÷
×
=
×4+4×
=
口算下面各题
72+28= 25×4= 12×=
÷
=
1﹣0.625=﹣
= 4.3÷0.1=
630÷70=
根据414÷9=46,直接写出下面各题的商.
4.14÷0.9=
4140÷0.9=
0.414÷0.09=
41.4÷9=
口算下面各题.
4.8÷1.2= 5.5÷1.1= 0.4×0.05=
1.6÷0.04= 0.25÷0.5= 0.8×1.25=
9.6÷0.6= 0.92÷0.4= 7.8÷1.3=
0.2×1.5=
3.47×1.5≈ (积保留一位小数)
0.68×4.3≈ (积保留两位小数)