6以内加减法口算
2+4= 3+3= 4+2= 6+0= 2+3= 1+4= 1+4= 0+3= 1+3= 0+6= 5-2= 6-3= 4-1= 3-2= 6-1= 4-2= 3+( )=5 1+( )=5 5+( )=6 3+( )=5 4- ( )=1 ( ) -0 =6 ( ) -5 = 6 5-5= 6-2= 5-4= 5-3= 4-3= 6-6= 6-3= 4-2= 6-5= 3-3= 4-1= 6-4= 0+( )=4 4+( )=6
6+( )=6 4+( )=5 3+( )=6 2+( )=4 2+( )=3 4+( )=6 4- ( )=6 4- ( )=5 ( ) -4=1 ( ) - 5=2 ( ) - 3 =3 ( ) -6 =0
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山有木兮木有枝，心悦君兮君不知。____佚名《越人歌》
