0.18÷0.090.18×0.09
0.7×0.70.7+0.7
3.07×0.6050.307×6.05
4.35×100.8×43.5
10÷0.01= 0.22+0.8= 10-2.05= 3.5×0.4=
0.2×5= 0.1÷0.01= 1.25×0.4= 0.35÷0.7=