①
②
③12.5×0.32×2.5
④5÷+÷5
⑤18×()×14
⑥4.5×26+45×7.4
0.8×0.2=
=
0÷23×87=
5﹣=
8.8÷1%=
261﹣99= 17÷34= 2.1+0.79= 80×125%=
÷36= 38.38÷38= +×0= ×3÷×3=