5.6×100=
5.6+0.8=
1.2×4=
5-0.45=
3.9÷0.1=
7.6÷7.6+2.7=
7.2÷9=
0.45÷0.3=
3.6÷0.18=
27×3.01÷27=
2.8-2.8÷7=
4.2÷6=
0.25×40=
0.14×0.3=
4.25×9.9+4.25×0.1=
0.2-0.2×0.2=
8.64÷12= ★12.2÷0.55≈
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