7.5÷1.57.5 39.6÷36.91
258÷0.625.8÷0.06 9.9×1.01 9.9÷1.01
7.38×2.17.38 8.74÷0.978.74
3.2÷0.13.2×10 0.67×0.670.67÷0.67
7.6÷0.97.6 0.8²0.8+0.8
4.7×0.290.47×2.9 4.35÷2.143.5÷21