① ×72+28÷
② + ×1.6﹣0.6
③88.8×12.5
425﹣198=
40×12.5%=
0.57+0.3=
28÷0.28=
1.38﹣0.03=
÷ =
0.28× =
36×25%=
﹣ =
0.72÷0.04=
400÷25÷4=
0.3×2÷0.3×2=
67.38﹣(17.6+15.38) 7.8÷[28×(1-)+3.6]
9.58×+42%÷ ÷-×
①14.4﹣4.63÷1.6﹣2.37
②2.5×12.5×50×0.8
③÷[×(﹣)]
④65×+65×
①40×[2-(+)]
②48×(+-)
③(2.74+5.4÷2.7)×0.3
④0.25×1.25×32
⑤507÷3+12.5×11
⑥2011×