①12.5×(8+0.8)
②+×
③+÷
④26﹣7.28﹣12.72
⑤5.8×4.1+5.9×5.8
⑥÷(+1.4×)
25×26﹣356 320÷80+3.6×1.5 28×(+-) ÷[×(-)]
①60+630÷18
②
③
④1.25×6.4×0.25
⑤
⑥
7.28﹣(1.28+0.25) ÷[×(0.5+)]
23× 3.7×+1.3÷
⑴;
⑵
⑶;
⑷
①856+97
②8.32×101-8.32
③7.5÷ -
④56×( + - )
⑤ ÷[ ×( + )]
⑥22.4-2.3-5.7