一年级数学下册第2单元《20以内的退位减法》2.2《十几减8、7、6》习题新人教版.doc

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1十几减 8、7、6圈一圈,算一算1.15 - 8 = ( )15 - 7 = ( )2. 13 - 8 = ( ) 看谁算得又对又快17-8= 13-7= 11-6= 12-8= 15-7= 14-6= ( )+6=11 8+( )=12 7+( )=13( )+8=13 9+( )=16 12-( )=6解决问题1.( 支)2.( 个)一共有 16 个球,筐里有几个?2答案和解析圈一圈,算一算1. 7 8 2. 5看谁算的又对又快9 6 5 4 8 8 5 4 6 5 7 6解决问题13-6=7 16-8=8

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