=□×35+□×35
=
=□×91+□×91
①45×11=
②21×31=
③23×32=
④22×23=
⑤36×11=
⑥31×13=
①3.3+4.8=
②31.8-17.2=
③62×47=
④714÷7=
⑤482÷8=
验算: