4x=
3x﹣38=37
90×=
5﹣1.8=
0.72÷6=
1÷0.25=
0.95+0.5=
3.4×0.1=
8﹣8×=
3.56×[1÷(2.1﹣2.09)]
( + ﹣ )×36
0.875×25+75×87.5%
÷ + ÷
①12.5×(8+0.8)
②+×
③+÷
④26﹣7.28﹣12.72
⑤5.8×4.1+5.9×5.8
⑥÷(+1.4×)