①104×56=
②246×38=
③308×50=
④283×47=
⑤216×46=
⑥372×25=
6.5+2.5= 1.23÷3= 5.2×5= 7÷14%=
= ﹣= ×= 0÷2022=
13.4﹣7.7= = = 299×5≈