1.2+4.5= 0.28×10= 6.87-0.87= 2.5×8= 0.1-0.01=
8.65×0= 0.2×0.2×0.2= 100×0.7= 2.8÷0.7=
2.3×5=
0.3+0.01=
4÷0.5=
6.7-2.3=
2.3÷0.01=
3.2×56=
20.7÷0.23=
5.628÷2.8=