40座座30座座和和 一共有多少个座位？一共有多少个座位？704030 = ( (个个) )4个十加个十加3个十得个十得7个个十，是十，是70。43 = 74030 =704070 30 =你是怎样想的？你是怎样想的？1. .50 40 = 90 40 = = = 90405090509040503 2 = 53020 =502. .5 1 = 45010 =402 3 4 = 9203040 = 909 3 2 = 8903020 = 803. .10603070604050801070303. .4080205030640601040464. .6030 = 909070 = 202040 = 606020 = 403030 = 607010 = 608050 7 =371080 6 =96307040 =605. .我拔了我拔了20个萝卜。个萝卜。我拔的和你我拔的和你同样多。同样多。一共拔了多少个？一共拔了多少个？ =202040（个）（个）
