1.7+3=
5.5÷5=
0.3×0.7=
7a﹣a=
2.1×3=
1÷0.2=
8.4÷4=
1.4﹣0.6=
2.25÷22.5=
8.5÷5=
0.6×0.4=
24.2÷0.1=
0.27×1=
12.5÷1.25=
11.7÷0.26 =
2.52÷3.5 =
★11.07÷0.54=
●△■○●□▲△●○
0.19+0.76= 8÷= 5-= 0.52÷0.4=
28×= 0.5= ÷= ×=