49+35= 308×5= 200×5= 110×6=
32.196-26= 720-400= +
= 1-
=
7×9+7= 100-23×3= 29×8≈ 503×7≈
,
360÷4360÷5 3000克3千克 32千克3千克200克
1
判断对错
①41÷7=
②346+558=
③▲212+452=
④785-46=
⑤546+283=
⑥▲635-326=