476+99=
6.2-4.8=
0.2×0.4=
0.2+=
547+198=
0.6-0.28=
5.5×=
3.6÷0.36=
7.7÷=
=
×5÷×5=
0.45+0.3=
4×25=
22.9-2.9=
6.4÷1.6=
3×7÷3×7=
5÷=
2.4×0.5=
1.27-0.7=
603×39≈
13÷26=
8.9a-a=
1-0.53=
×4÷×4=
①2.4×5=
② ×91=
③0.42=
④1÷ ×6=
⑤6.8-0.71-1.39=
⑥2- + =
⑦ ×4÷ ×4=
⑧21×199≈
103-68=
×36=
37.42+ 6.38=
1-0.84=
0.8×12.5=
2.04÷4=
63.4-7.8-2.2=
×0=
①
②