①÷12÷
②×÷
③÷÷
④××
⑤÷÷
⑥÷×
①
②
③
④
⑤
⑥
①75%×+×75% ②7×(×) ③(+)÷×
①12.5×(8+0.8)
②+×
③+÷
④26﹣7.28﹣12.72
⑤5.8×4.1+5.9×5.8
⑥÷(+1.4×)