36×0.8936 9.83÷4.59.83 0.46×1546×0.15
5.2÷0.25.2 7.26÷17.26×1 2.1×0.90.9
32×3= 13×50= 0÷8= 70×800=
8000÷4= 360÷9= 16×300= 68÷2=
2×5= 1×8= 6×4= 9×8= 7×8=
7×6= 6×8= 4×9= 3×3= 8×5=
3×7+20= 4×3-2= 52+36=
6×6+6= 84-(70-6)=
被除数和除数同时增加相同的倍数,商不变.