课件17张PPT。有几棵树画一画,分一分。6516426336246154-3=( )3-2=( )5 - 2 =( )3+ 2= ( )5 - 3=( )5 - 4 =( )3 - 1 = ( )5 -1=( )24113523 + 2 = ( )15到家啦!6-1=56-1=56-5=16246-2=46-4=26336-3=3摘苹果6-5=6-1=6-3=6-2=6-4=6-1 =56 - 2 =466-3=36 - 4 =266 - 5 =16智慧乐园 6-2=( ) 6-3=( )
( )+2=6 3+( )=6
6-( )=4 6-( )=1
6-4=( ) 6-5=( )
1+( )=6 ( )-5=143432521566 - =24- =642练一练