7.3×1.27.3 9.8÷0.129.8
4.9×0.654.9 0.375÷2.43.75÷24
0.3×0.2=
2.4×10=
4.2÷0.7=
3.6÷12=
9.1÷0.7=
15×0.6=
0.78÷0.3=
0.25×4=
谁打字的速度快一些?