15.5-3.5=
8.9÷100=
5.1+4.09=
0.14×100=
22.4+1.6=
7.63×1000=
4.8+5.2=
14.5-4.5=
0.8+1.2=
4.5-4=
3+0.67=
199+52=
3-0.4=
25×28×0=
3.56×100=
4.7÷10=