5.1÷0.3=
2.4×0.5=
1.2×60=
1÷0.125=
7.5÷0.25=
0.62=
2.5-2.5÷5=
0.5×4÷0.5×4=
( )○( )=( )
①1.25×(30.1﹣24.91÷4.7)
②[ ﹣( ﹣ )]÷
③15.6×13.1﹣15.6﹣15.6×2.1
④2 ×23.4+11.1×57.6+6.54×28
⑤1234+2341+3412+4123
⑥ + + + + +