9.7﹣4.65=
28.5÷0.15=
1.7×0.24≈(得数保留两位小数)
8.6×0.1= 2.4÷0.3= 18÷0.2= 8.1÷0.9=
5.4÷6= 0.42÷0.6= 9×0.8= 0.025×4=
1.26×0.03=
口诀:
(个)
或(个)