1、220 以内退位减法(1)11-6= 13-7= 14-9= 12-8=11-9= 12-9= 12-7= 11-3=12-3= 16-7= 15-6= 13-9= 17-9= 14-8= 15-9= 17-8= 13-8= 12-6= 14-7= 11-6=14-6= 11-4= 11-2= 13-4=13-6= 12-4= 11-8= 12-5= 13-7= 14-6= 15-7= 18-9= 11-5= 15-8= 16-9= 16-8= 13-8= 12-6= 14-7= 11-6=13-7= 14-5= 15-7= 18-9= 12-3= 16-7= 15-6= 13-9= 20 以
2、内退位减法(2)12-3= 16-7= 15-6= 13-9= 14-6= 11-4= 11-2= 13-4=13-8= 12-6= 14-7= 11-6=11-7= 13-5= 14-9= 12-8=13-7= 14-5= 15-7= 18-9= 11-9= 12-9= 12-7= 11-3=13-6= 12-4= 11-8= 12-5= 17-9= 14-8= 15-9= 17-8= 11-5= 15-8= 16-9= 16-8= 13-7= 14-5= 15-7= 18-9= 11-5= 17-9= 15-9= 11-3=14-9= 12-9= 12-7= 14-7=320 以内退位减法
3、(3)14-6= 11-4= 11-2= 13-4=12-3= 16-7= 15-6= 13-9= 13-8= 12-6= 14-7= 11-6=17-9= 14-8= 15-9= 17-8= 11-5= 15-8= 16-9= 16-8= 11-9= 12-9= 12-7= 11-3=13-7= 14-5= 15-7= 18-9= 11-7= 13-5= 14-9= 12-8=13-6= 12-4= 11-8= 12-5= 13-8= 12-6= 14-7= 11-6=12-3= 16-7= 15-6= 13-9= 11-5= 15-8= 16-9= 16-8= 20 以内退位减法(4)11
4、-9= 12-9= 12-7= 11-3=14-6= 11-4= 11-2= 13-4=11-5= 15-8= 16-9= 16-8= 13-6= 12-4= 11-8= 12-5= 17-9= 14-8= 15-9= 17-8= 13-7= 14-5= 15-7= 18-9= 12-3= 16-7= 15-6= 13-9= 13-8= 12-6= 14-7= 11-6=11-7= 13-5= 14-9= 12-8=11-9= 12-9= 12-7= 11-3=13-7= 14-5= 15-7= 18-9= 13-6= 12-4= 11-8= 12-5= 420 以内退位减法(5)11-5=
5、15-8= 16-9= 16-8= 17-9= 14-8= 15-9= 17-8= 13-6= 12-4= 11-8= 12-5= 12-3= 16-7= 15-6= 13-9= 11-9= 12-9= 12-7= 11-3=13-8= 12-6= 14-7= 11-6=11-7= 13-5= 14-9= 12-8=14-6= 11-4= 11-2= 13-4=13-7= 14-5= 15-7= 18-9= 11-7= 13-5= 14-9= 12-8=13-8= 12-6= 14-7= 11-6=12-3= 16-7= 15-6= 13-9= 20 以内退位减法(6)17-9= 14-8=
6、15-9= 17-8= 11-5= 15-8= 16-9= 16-8= 13-8= 12-6= 14-7= 11-6=11-7= 13-5= 14-9= 12-8=14-6= 11-4= 11-2= 13-4=13-7= 14-5= 15-7= 18-9= 12-3= 16-7= 15-6= 13-9= 11-9= 12-9= 12-7= 11-3=13-6= 12-4= 11-8= 12-5= 12-3= 16-7= 15-6= 13-9= 14-6= 11-4= 11-2= 13-4=13-8= 12-6= 14-7= 11-6=520 以内退位减法(7)11-9= 12-9= 12-7=
7、 11-3=12-3= 16-7= 15-6= 13-9= 13-6= 12-4= 11-8= 12-5= 11-5= 15-8= 16-9= 16-8= 12-6= 13-8= 14-7= 11-6=17-9= 14-8= 15-9= 17-8= 11-7= 13-5= 14-9= 12-8=13-7= 14-5= 15-7= 18-9= 14-6= 11-4= 11-2= 13-4=12-6= 13-8= 14-7= 11-6=12-3= 16-7= 15-6= 13-9= 11-5= 15-8= 16-9= 16-8= 20 以内退位减法(8)12-3= 16-7= 15-6= 13-9
8、= 13-6= 12-4= 11-8= 12-5= 13-8= 12-6= 14-7= 11-6=11-9= 12-9= 12-7= 11-3=17-9= 14-8= 15-9= 17-8= 11-7= 13-5= 14-9= 12-8=13-7= 14-5= 15-7= 18-9= 14-6= 11-4= 11-2= 13-4=11-5= 15-8= 16-9= 16-8= 14-6= 11-4= 11-2= 13-4=13-7= 14-5= 15-7= 18-9= 11-9= 12-9= 12-7= 11-3=620 以内退位减法( 9)13-7= 14-5= 15-7= 18-9= 17
9、-9= 14-8= 15-9= 17-8= 14-6= 11-4= 11-2= 13-4=11-9= 12-9= 12-7= 11-3=13-8= 12-6= 14-7= 11-6=11-7= 13-5= 14-9= 12-8=12-3= 16-7= 15-6= 13-9= 13-6= 12-4= 11-8= 12-5= 11-5= 15-8= 16-9= 16-8= 11-9= 12-9= 12-7= 11-3=13-7= 14-5= 15-7= 18-9= 14-6= 11-4= 11-2= 13-4=20 以内退位减法(10 )12-3= 16-7= 15-6= 13-9= 11-7=
10、13-5= 14-9= 12-8=13-8= 12-6= 14-7= 11-6=11-9= 12-9= 12-7= 11-3=14-6= 11-4= 11-2= 13-4=11-5= 15-8= 16-9= 16-8= 13-6= 12-4= 11-8= 12-5= 17-9= 14-8= 15-9= 17-8= 11-7= 13-5= 14-9= 12-8=13-7= 14-5= 15-7= 18-9= 11-9= 12-9= 12-7= 11-3=720 以内进位加法口算(1)9+2= 8+6= 4+7= 8+8=7+6= 9+8= 7+9= 4+9=6+8= 9+9= 2+9= 9+4=
11、8+9= 3+8= 6+5= 4+8=7+5= 5+8= 6+7= 7+4=9+6= 3+9= 5+6= 8+5= 5+7= 6+6= 7+7= 9+5=9+3= 7+8= 5+9= 8+3=6+9= 8+7= 8+4= 9+7=7+5= 5+8= 6+7= 7+4=8+9= 3+8= 6+5= 4+8=6+8= 9+9= 2+9= 9+4=20 以内进位加法口算(2)6+8= 9+9= 2+9= 9+4=5+7= 6+6= 7+7= 9+5=8+9= 3+8= 6+5= 4+8=9+2= 8+6= 4+7= 8+8=9+3= 7+8= 5+9= 8+3=7+5= 5+8= 6+7= 7+4=
12、9+6= 3+9= 5+6= 8+5= 7+6= 9+8= 7+9= 4+9=6+9= 8+7= 8+4= 9+7=7+5= 5+8= 6+7= 7+4=9+2= 8+6= 4+7= 8+8=9+3= 7+8= 5+9= 8+3=820 以内进位加法口算(3)7+6= 9+8= 7+9= 4+9=9+2= 8+6= 4+7= 8+8=9+6= 3+9= 5+6= 8+5= 7+5= 5+8= 6+7= 7+4=6+8= 9+9= 2+9= 9+4=9+3= 7+8= 5+9= 8+3=6+9= 8+7= 8+4= 9+7=8+9= 3+8= 6+5= 4+8=5+7= 6+6= 7+7= 9+
13、5=9+3= 7+8= 5+9= 8+3=6+8= 9+9= 2+9= 9+4=9+2= 8+6= 4+7= 8+8=20 以内进位加法口算(4)6+9= 8+7= 8+4= 9+7=9+2= 8+6= 4+7= 8+8=5+7= 6+6= 7+7= 9+5=9+3= 7+8= 5+9= 8+3=6+8= 9+9= 2+9= 9+4=7+5= 5+8= 6+7= 7+4=9+6= 3+9= 5+6= 8+5= 7+6= 9+8= 7+9= 4+9=8+9= 3+8= 6+5= 4+8=9+3= 7+8= 5+9= 8+3=7+5= 5+8= 6+7= 7+4=6+8= 9+9= 2+9= 9+
14、4=920 以内进位加法口算(5)7+6= 9+8= 7+9= 4+9=9+2= 8+6= 4+7= 8+8=6+8= 9+9= 2+9= 9+4=8+9= 3+8= 6+5= 4+8=9+3= 7+8= 5+9= 8+3=7+5= 5+8= 6+7= 7+4=9+6= 3+9= 5+6= 8+5= 5+7= 6+6= 7+7= 9+5=6+9= 8+7= 8+4= 9+7=7+6= 9+8= 7+9= 4+9=9+6= 3+9= 5+6= 8+5= 8+9= 3+8= 6+5= 4+8=20 以内进位加法口算(6)6+8= 9+9= 2+9= 9+4=9+2= 8+6= 4+7= 8+8=7
15、+6= 9+8= 7+9= 4+9=9+3= 7+8= 5+9= 8+3=8+7= 8+4= 6+9= 9+7=8+9= 3+8= 6+5= 4+8=7+5= 5+8= 6+7= 7+4=9+6= 3+9= 5+6= 8+5= 5+7= 6+6= 7+7= 9+5=8+7= 8+4= 6+9= 9+7=7+5= 5+8= 6+7= 7+4=9+3= 7+8= 5+9= 8+3=1020 以内进位加法口算(7)7+6= 9+8= 7+9= 4+9=6+9= 8+7= 8+4= 9+7=5+7= 6+6= 7+7= 9+5=8+9= 3+8= 6+5= 4+8=9+2= 8+6= 4+7= 8+8
16、=6+8= 9+9= 2+9= 9+4=9+3= 7+8= 5+9= 8+3=7+5= 5+8= 6+7= 7+4=9+6= 3+9= 5+6= 8+5= 9+2= 8+6= 4+7= 8+8=7+5= 5+8= 6+7= 7+4=8+9= 3+8= 6+5= 4+8=20 以内进位加法口算(8)9+2= 8+6= 4+7= 8+8=6+8= 9+9= 2+9= 9+4=7+5= 5+8= 6+7= 7+4=9+3= 7+8= 5+9= 8+3=7+6= 9+8= 7+9= 4+9=6+9= 8+7= 8+4= 9+7=5+7= 6+6= 7+7= 9+5=8+9= 3+8= 6+5= 4+8=9+6= 3+9= 5+6= 8+5= 7+6= 9+8= 7+9= 4+9=9+2= 8+6= 4+7= 8+8=6+8= 9+9= 2+9= 9+4=