9.9×1.19.9 1.337÷0.991.337
2.3×5=
0.3+0.01=
4÷0.5=
6.7-2.3=
2.3÷0.01=
22.5÷18= ★8.4÷0.56=验算:
1.08×0.6÷0.24 (78.4+8)÷2.7 5.2÷0.8÷0.13