25.56-2.556 15×208 8.42+5.8
①127×78=
②306×74=
③830×36=
④525×44=
⑤508×29=
⑥227×11=
①340×65=
②126×34=
③309×16=
④60×350=
⑤71×211=
⑥600×73=