+=
-=
①12.5×(8+0.8)
②+×
③+÷
④26﹣7.28﹣12.72
⑤5.8×4.1+5.9×5.8
⑥÷(+1.4×)
1÷0.25= 15×60= 72×25%=
1.1-0.01= 12÷ =
24×( )=