2.37÷0.232.37 7.67×3.47.67
25.4×525.45 5.62×15.62
4.58÷2.34.58 0.25×0.990.25
1.2÷0.3= 0.7×0.9= 4×(2.5+0.25)=
0÷0.26= 0.45÷0.9= 0.57×8×1.25=