0.65×3＝ 9.9÷0.1＝ 1÷5＝ 1.7×0.04＝ 1﹣0.2÷0.2＝
23.1×0.1＝ 1.05×100＝ 0×3.75＝ 5.4﹣3.7＝ 2.5×4×8＝
1.2-1.02= 6.6-2×0.5= 9.8×2.7×0= 4×0.5÷4×0.5=
