文档介绍：一年级数学加减法口算口诀
1+1=
1+2= 2+2=
1+3= 2+3= 3+3=
1+4= 2+4= 3+4= 4+4=
1+5= 2+5= 3+5= 4+5= 5+5=
1+6= 2+6= 3+6= 4+6= 5+6= 6+6=
1+7= 2+7= 3+7= 4+7= 5+7= 6+7= 7+7=
1+8= 2+8= 3+8= 4+8= 5+8= 6+8= 7+8= 8+8=
1+9= 2+9= 3+9= 4+9= 5+9= 6+9= 7+ 9= 8+9= 9+9=
1-1=
2-1= 2-2=
3-1= 3-2= 3-3=
4-1= 4-2= 4-3= 4-4=
5-1= 5-2= 5-3= 5-4= 5-5=
6-1= 6-2= 6-3= 6-4= 6-5= 6-6=
7-1= 7-2= 7-3= 7-4= 7-5= 7-6= 7-7=
8-1= 8-2= 8-3= 8-4= 8-5= 8-6= 8-7= 8-8=
9-1= 9-2= 9-3= 9-4= 9-5= 9-6= 9-7= 9-8= 9-9=
10-1= 10-2= 10-3= 10-4= 10-5= 10-6= 10-7= 10-8= 10-9=
10-10=