0.24÷0.6= 4.2÷0.01= 70÷0.5=
0÷9.84= 0.28×5+0.72×5= 10.78×0.75×0=
① × + ×
②62.5%× + ×
③( + )×72
④ × ÷( - )
⑤( +2.4÷ )÷0.7
⑥ × + ÷