①10.25÷0.25÷0.4
②(9.6+2.4)÷0.8
③0.45×18÷0.15
④79.5÷0.75+0.25
⑤16.2÷(48.6-8.1)×1.5
204﹣78= 120×7= 960÷6=
3.8﹣2.98= + = ÷ =
①7.4﹣6.62+20.6﹣13.38
②×+×
③(-+)÷
④2×0.8×12.5×50%
⑤÷(÷+)
⑥×[1÷(+)]