1.6÷0.8= 7.2÷0.6= 3.9÷3.9=
1.8×0.8= 3.7+4.8= 0÷6.82=
2.5÷10= 16﹣5.7= 1.3×0.6+1.3×0.4=
9.57﹣1.34﹣3.66=
竖式计算．
0.38×1.23= 13.2÷0.04= 4.6÷0.25= 5.2×3.8=
直接写得数
0.3×0.2= 2.4×10= 4.2÷0.7= 3.6÷12 1.2×5= 9.1÷0.7=
口算
0.17×5= 0.22×4= 0×19.8= 0.2×0.5=
0.63÷0.7= 1.8÷30= 5.6÷4= 1.21÷1.1=
口算．
2.5÷0.5= 0.42÷0.6= 3.5÷0.01= 0.25×4= 12.5×0.8= 0.2×50=