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时间:2019-06-12
《两位数加减一位数口算过程》由会员上传分享,免费在线阅读,更多相关内容在应用文档-天天文库。
1、两位数加一位数(不进位)口算过程48+40=3+26=先算:先算:再算:再算:50+43=8+34=先算:先算:再算:再算:85+10=2+77=先算:先算:再算:再算:31+3=27+20=先算:先算:再算:再算:两位数加一位数(不进位)口算过程33+2=51+40=先算:先算:再算:再算:52+4=33+30=先算:先算:再算:再算:78+20=4+44=先算:先算:再算:再算:67+2=58+3=先算:先算:再算:再算:两位数加一位数(进位)口算过程方法一:方法二:32+9=32+9=先算:先算:再算:再算:方法一:方法二:48+7=48+7=先算:先算:再算:再算:方法
2、一:方法二:8+63=8+63=先算:先算:再算:再算:两位数加一位数(进位)口算过程方法一:方法二:79+7=79+7=先算:先算:再算:再算:方法一:方法二:9+57=9+57=先算:先算:再算:再算:方法一:方法二:26+7=26+7=先算:先算:再算:再算:两位数减一位数(退位)口算过程32-9=55-6=先算:先算:再算:再算:82-7=74-8=先算:先算:再算:再算:22-3=38-9=先算:先算:再算:再算:两位数减一位数(退位)口算过程88-9=27-8=先算:先算:再算:再算:34-7=75-8=先算:先算:再算:再算:26-9=44-5=先算:先算:再算:
3、再算:两位数减一位数(退位)口算过程88-9=27-8=先算:先算:再算:再算:34-7=75-8=先算:先算:再算:再算:26-9=44-5=先算:先算:再算:再算:两位数减一位数(退位)口算过程32-9=55-6=先算:先算:再算:再算:82-7=74-8=先算:先算:再算:再算:22-3=38-9=先算:先算:再算:再算:
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