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1、开始,802,4505,3606,1844,3073,5648,金鹏超市,永辉超市,80元2箱,450元5箱,360元6箱,184元4箱,307元3箱,564元8箱,802,4505,3606,3073,5648,=40(元),=60(元),金鹏超市,永辉超市,80元2箱,450元5箱,360元6箱,184元4箱,307元3箱,564元8箱,70(元),=90(元),1844,100(元),40(元),50(元),802,4505,3606,3073,5648,=40(元),=60(元),金鹏超市,永辉超市,80元2箱,450元5箱,360元6箱,184元4箱,307元3箱,564元8箱,70
2、(元),=90(元),1844,100(元),40(元),50(元),1844,3073,5648,=46(元),=102(元)1(元),=70 (元)4(元),802,4505,3606,1844,3073,5648,金鹏超市,永辉超市,80元2箱,450元5箱,360元6箱,184元4箱,307元3箱,564元8箱,估算:3073100,想: 3003=100,3003=100 03=0 73=21,802,4505,3606,1844,3073,5648,金鹏超市,永辉超市,80元2箱,450元5箱,360元6箱,184元4箱,307元3箱,564元8箱,8,8,725,72,5,9,349,6,30,49,42,7,5,428,4,4,28,28,0,1,0,7,0,0,7,48,1,1、火眼金睛辨对错,一位不够看两位, 除到哪位商哪位,,余数要比除数小,,不够商“1”,“0”占位。,2、认真细心看谁棒,(1)6246=,(2)2834=,把第二题验算,智慧大挑战:, 3,6,要使商末尾有0, 里可填几。,要使商中间有0, 被除数可能是多少?,02,3,要使商中间有0, 里可填几。, 4,4 8,03,3,