小学二年级数学《用2-6的乘法口诀求商》教学课件
31页填空。并说说( )里的数是用了 哪句口诀想出来的。2( )=4 3( )=6 4( )=8 ( )3=12 ( )4=20 5( )=15总圈减12-3=9(个)9-3=6(个)-3=(个)6-3=3(个)方法一:方法二:(个)(个)(个)(个)方法三:想和几相乘得?三(四)十二,商是把12个桃子,平均分给4只 小猴子,每只小猴子分几 个桃子? 想口诀二五一十想口诀二六十二想口诀二四得八(个) 想(二)三得六1531535(只)三(五)十五22418893334251 666344 316255102105618212412312651316141根据图列出一个乘法两个除法算式2 882 484 212216415342621838424610520518644看谁先到家122164153422621838424610520518644122164153542262183842461052051864412216441535422621838424610520518644122616441535422621838424610520518644122616441535422621838424610522051864412261644153542262183842464105220518644122616441535422621838422464105220518644122616441535422621836842246410522051864412261644153542262183684224641052205186441122616441535422621836842246410522051863441122616441535422621836842246410522054186344112261644153542262318368422464105220541863441123= 4猴妈妈有12个桃子,要把这 些桃子平均分给一些小猴,猴妈 妈有几种分法?方法一:1234方法二:1243方法三:1226方法四:1262方法五:12112方法六:12121
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