①×15÷
②×18
③
① + -
②8 -( + )
③ -0.25+ -
④ +( - )
⑤ ÷9+ ×
⑥14× ÷14×
①12.5×(8+0.8)
②+×
③+÷
④26﹣7.28﹣12.72
⑤5.8×4.1+5.9×5.8
⑥÷(+1.4×)