4.2×0.94.2÷0.9
4.8÷0.8=
0.15×4=
6-0.62=
10÷20=
2.5×4=
2.3×0.4=
46÷2.3=
4.5+2.05=
15.6÷24= 20.64÷3.2= ※3.09÷1.5=
7.56-0.56÷0.4 1.8÷0.12-2.3 0.81×2.3-1.3×0.81