<<<<
3×0.9=
4.8÷0.4=
8y﹣y=
0.3×20=
2.5÷10=
2.5×0.4=
2﹣0.6=
13.4×0=
10.7×0.45=
80.5÷0.25=
*7.8÷3.5≈
1.6×2.5×0.4
9.5×101
3.65×2.8+3.65×7.2