直接写出得数．
0.6×0.3= 9.8﹣4.9= 3.69÷3= 8.72÷0.1=
0.25×9×4= 3÷4= 2.4×5= 5.4x﹣3x=
列竖式计算：
①50﹣37.5= ②12.6÷0.28=
直接写出得数．
7.2÷0.8= 1.08+0.8= 27.9÷30= 3.4÷17= 0.16÷0.016=
2.3×0.4= 4×0.25= 7.5÷0.15= 5.4×5.4÷5.4×5.4= 7.6×8+2.4×8=
1.23÷3= 0.8×11= 1﹣0.75=
1.7×0.4= 0.36÷12=1.6+0.38=
1.2÷0.3= 0.75×4= 15×0.4=
2.14﹣0.9= 4×0.25= 10÷2.5=
0.4×52= 1.6×0.4= 9.6÷6=
4.3﹣0.4= 7﹣6.2= 0.86﹣0.3=
8.8÷2.2= 2.6÷0.2= 0.15×3=
0.9÷0.45= 0.27÷3= 0.51+1.7=
0.6÷0.5= 0.125×8= 0.38×1000=
6.8﹣1.7= 2.4×0.2= 32.8+19=
0.56÷14= 1÷0.05= 6÷12=
0.14×5= 3×1.4= 4.9÷0.7=
0.4÷8= 6.3+3.7= 3.5×0.2=
0.2×12.6×5= 8.4÷4.2= 2.4×0.5=
0÷3.5×0.2= 0×9.7+2.3= 1.6×9+1.6=
3.8+1.2= 4.8÷0.3= 530+270=
7.6÷3.8= 92÷2.3= 9.6﹣1.6=
7.2+2.8=2.63+0.37= 0.67+1.24=
0.3×101= 0.25×8= 16÷1.6=
26.1﹣3.5﹣7.5=
用竖式计算．（标△要验算）
17.8+3.29 8﹣5.86 8.93÷1.9△