[苏教版]三年级上学期数学除法和有关的实际问题期末复习教学课件

一两、三位数乘一位数··························································1二千克和克·········································································28三长方形和正方形································································36周长是多少····································|··································46四两、三位数除以一位数·······················································48五解决问题的策略································································71间隔排列·········································································78六平移、旋转和|轴对称··························································80七分数的初步认识（一）·······················································87多彩的“分数条”·····························································96八期末复习·························································|················98

1苏教版三年级上册除法和有关的实际问题

2两、三位数除以一位数整十、整百数除以一位数的口算笔算两、三位数除以一位数除法的验算首位或首两位能整除首位不能整除或不够除被除数有0或商里有0系统梳理【单击文字跳转链接】

3先按表内除法算出商，再看被除数的末尾还剩几个0，就在商的末尾添上几个0。整理复习1整十、整百数除以一位数的口算【点击返回】

4三位数除以一位数，从百位除起，百位数大于或等于除数，商就是三位数，百位数不够除就看前两位，除到哪一位，商就写在那一位的上面，有余数的和下一位合起来继续|除，哪位（百位除外）不够商1，就商0占位。2两、三位数除以一位数的笔算【点击返回】相同数位对齐。从被除数的最高位除起，一位一位地往下除，除到被除数的哪一位，商就写在那一位的上面。两、三位数除以一位数（首位或首两位都能整除）的笔算：

5三位数除以一位数，从百位除起，百位数大于或等于除数，商就是三位数，百位数不够除就看前两位，除到哪一位，商就写在那一位的上面，有余数的和下一位合起来继续除，哪位（百位除外）不够商1，就商0占位。【点击返回】（1）从被除数的高位除起，一位不够看两位；（2）每次余下的数要与被除数下一位上的数合起来继|续除，除到哪一位，商就写在那一位的上面；（3）每次余下的数要比除数小。两、三位数除以一位数（首位不能整除或不够除）的笔算：2两、三位数除以一位数的笔算

6三位数除以一位数，从百位除起，百位数大于或等于除数，商就是三位数，百位数不够除就看前两位，除到哪一位，商就写在那一位的上面，有余数的和下一位合起来继续除，哪位（百位除外）不够商1，就商0占位。【点击返回】三位数除以一位数，在求出商的最高位以后，遇到被除数的某一位上是“0除以一个数”或不够商1时，就在这一位商0占位。商中间或末尾有0的除法的笔算：0除以任何不是0的数都等于0|2两、三位数除以一位数的笔算

73除法的验算没有余数的除法，根据“商×除数=被除数”验算；有余数的除法，根据“商×除数+余数=被除数”验算。【点击返回】

81.口算下面各题，并说说是怎样算的。2002080401812随堂练习60÷3=280÷7=36÷3=600÷3=400÷5=36÷2=【选自教材第99页第8题】

9整十、整百数、几百几十数除以一位数：先按表内除法求出商，再在后面添写相应个数的0；几十几除以一位数：先将几十几分成几十和几或几十和十几，分别除以一位数，再把除得的结果合起来。

102.800÷4=60÷5=9|3÷3=28÷2=44÷2=84÷7=720÷9=500÷5=56÷4=320÷8=72÷6=48÷3=20022141212403180121410016【选自教材第99页第9题】

1166322666066÷364÷361÷33.=22=21……1=20……16432164316132061三位数除以一位数，从被除数的最高位起，一位一位地往下除，如果最高位不够除，就用它的首两位去除；除到哪一位，就把商写在那一位的上面；求出商的最高位数后，如果哪一位上不够商1，就在这一位商0；每次除得的余数都要比除数小。【选自教材第99页|第10题】

128484212844880848÷4548÷4148÷43.=212=137=37548413741412282801484371228280【选自教材第99页第10题】

13642÷9642÷8642÷6=71……3=80……2=10764297163129364288064264261076424203.【选自教材第99页第10题】

144.计算下面各题，并验算。92÷3=923392030×390+292验算：30……2【选自教材第99页第11题】

15412÷8=41285401128451×8408+44|12验算：51……4

16249÷7=249732135935435×7245+4249验算：35……4

17807÷4=80742807431201×4804+3807验算：201……3

185.97÷4=24（串）······1（个）答：最多能串24