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7 的乘法口诀及求商

7 的乘法口诀及求商. 成都电大龙劝分校 2005 春小教大专班 陈永健. 1 、把口诀填完整. ( )七二十一 四( )二十八 ( )七四十九 二( )十四 五( )三十五 ( )七四十二. 2 、 先填出计算结果,再说说你是怎样想的?. ( ) ×7 = 35 7× ( )= 49 ( ) ×7 = 7 7× ( )= 14 ( ) ×3 = 21 5× ( )= 35

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7 的乘法口诀及求商

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  1. 7 的乘法口诀及求商 成都电大龙劝分校2005春小教大专班 陈永健

  2. 1、把口诀填完整 ( )七二十一 四( )二十八 ( )七四十九 二( )十四 五( )三十五 ( )七四十二 2、先填出计算结果,再说说你是怎样想的? ( )×7=35 7×( )=49 ( )×7=7 7×( )=14 ( )×3=21 5×( )=35 ( )×7=42 ( )×7=28

  3. 编题:每组有7架飞机, 3组一共有多少架飞机? 列式:7×3=21(架)

  4. 编题:每组有3架飞机, 7组一共有多少架飞机? 列式:3×7=21(架)

  5. 在( )里填上合适的单位 一把米尺的长是1( ) 一把米尺的长是10( ) 分米 米 一把米尺的长是100( ) 一个墨水瓶高约1( ) 厘米 分米 教室的门高约是2( ),宽约是1( ) 米 米

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