20以内退位减法(1)
11-7= 13-5= 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= 13-7= 11-5= 13-8= 13-7= 12-3= 12-3= 14-6= 13-8= 11-7= 13-7= 11-9= 13-6= 17-9= 11-5= 13-7= 11-5= 14-9= 12-4= 11-8= 12-5= 14-5= 15-7= 18-9= 15-8= 16-9= 16-8= 12-6= 14-7= 11-6= 14-5= 15-7= 18-9= 16-7= 15-6= 13-9=
20以内退位减法(2)
16-7= 15-6= 13-9= 11-4= 11-2= 13-4= 12-6= 14-7= 11-6= 13-5= 14-9= 12-8= 14-5= 15-7= 18-9= 12-9= 12-7= 11-3= 12-4= 11-8= 12-5= 14-8= 15-9= 17-8= 15-8= 16-9= 16-8= 14-5= 15-7= 18-9= 17-9= 15-9= 11-3= 12-9= 12-7= 14-7=
1
20以内退位减法(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= 11-7= 13-5= 14-9= 13-6= 12-4= 11-8= 13-8= 12-6= 14-7= 12-3= 16-7= 15-6= 11-5= 15-8= 16-9= 20以内退位减法(4)
11-9= 12-9= 12-7= 14-6= 11-4= 11-2= 11-5= 15-8= 16-9= 13-6= 12-4= 11-8= 17-9= 14-8= 15-9= 13-7= 14-5= 15-7= 12-3= 16-7= 15-6= 13-8= 12-6= 14-7= 11-7= 13-5= 14-9= 11-9= 12-9= 12-7= 13-7= 14-5= 15-7= 13-6= 12-4= 11-8=
2
18-9= 12-8= 12-5= 11-6= 13-9= 16-8=
11-3= 13-4= 16-8= 12-5= 17-8= 18-9= 13-9= 11-6= 12-8= 11-3= 18-9= 12-5=
20以内退位减法(5)
11-5= 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= 14-6= 11-4= 11-2= 13-7= 14-5= 15-7= 11-7= 13-5= 14-9= 13-8= 12-6= 14-7= 12-3= 16-7= 15-6= 20以内退位减法(6)
17-9= 14-8= 15-9= 11-5= 15-8= 16-9= 13-8= 12-6= 14-7= 11-7= 13-5= 14-9= 14-6= 11-4= 11-2= 13-7= 14-5= 15-7= 12-3= 16-7= 15-6= 11-9= 12-9= 12-7= 13-6= 12-4= 11-8= 12-3= 16-7= 15-6= 14-6= 11-4= 11-2= 13-8= 12-6= 14-7=
3
12-8= 13-4= 18-9= 12-8= 11-6= 13-9=
17-8= 16-8= 11-6= 12-8= 13-4= 18-9= 13-9= 11-3= 12-5= 13-9= 13-4= 11-6=
20以内退位减法(7)
11-9= 12-9= 12-7= 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= 13-7= 14-5= 15-7= 14-6= 11-4= 11-2= 12-6= 13-8= 14-7= 12-3= 16-7= 15-6= 11-5= 15-8= 16-9= 20以内退位减法(8)
12-3= 16-7= 15-6= 13-6= 12-4= 11-8= 13-8= 12-6= 14-7= 11-9= 12-9= 12-7= 17-9= 14-8= 15-9= 11-7= 13-5= 14-9= 13-7= 14-5= 15-7= 14-6= 11-4= 11-2= 11-5= 15-8= 16-9= 14-6= 11-4= 11-2= 13-7= 14-5= 15-7= 11-9= 12-9= 12-7=
4
12-8= 18-9= 13-4= 11-6= 13-9= 16-8=
13-9= 12-5= 11-6= 11-3= 17-8= 12-8= 18-9= 13-4= 16-8= 13-4= 18-9= 11-3=
20以内退位减法( 9)
13-7= 14-5= 15-7= 18-9= 17-9= 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= 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=
5
20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= 8+9= 3+8= 6+5= 4+8= 7+5= 5+8= 6+7= 7+4=
9+6= 3+9= 5+6= 5+7= 6+6= 7+7= 9+3= 7+8= 5+9= 6+9= 8+7= 8+4= 7+5= 5+8= 6+7= 8+9= 3+8= 6+5= 6+8= 9+9= 2+9= 20以内进位加法口算(2)
6+8= 9+9= 2+9= 5+7= 6+6= 7+7= 8+9= 3+8= 6+5= 9+2= 8+6= 4+7= 9+3= 7+8= 5+9= 7+5= 5+8= 6+7= 9+6= 3+9= 5+6= 7+6= 9+8= 7+9= 6+9= 8+7= 8+4= 7+5= 5+8= 6+7= 9+2= 8+6= 4+7= 9+3= 7+8= 5+9=
6
8+5= 9+5= 8+3= 9+7= 7+4= 4+8= 9+4=
9+4= 9+5= 4+8= 8+8= 8+3= 7+4= 8+5= 4+9= 9+7= 7+4= 8+8= 8+3=
20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= 6+9= 8+7= 8+4= 8+9= 3+8= 6+5= 5+7= 6+6= 7+7= 9+3= 7+8= 5+9= 6+8= 9+9= 2+9= 9+2= 8+6= 4+7= 20以内进位加法口算(4)
6+9= 8+7= 8+4= 9+2= 8+6= 4+7= 5+7= 6+6= 7+7= 9+3= 7+8= 5+9= 6+8= 9+9= 2+9= 7+5= 5+8= 6+7= 9+6= 3+9= 5+6= 7+6= 9+8= 7+9= 8+9= 3+8= 6+5= 9+3= 7+8= 5+9= 7+5= 5+8= 6+7= 6+8= 9+9= 2+9= 7
8+3= 9+7= 4+8= 9+5= 8+3= 9+4= 8+8= 9+7= 8+8= 9+5= 8+3= 9+4= 7+4=
8+5= 4+9= 4+8= 8+3= 7+4= 9+4=
20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= 5+7= 6+6= 7+7= 6+9= 8+7= 8+4= 7+6= 9+8= 7+9= 9+6= 3+9= 5+6= 8+9= 3+8= 6+5= 20以内进位加法口算(6)
6+8= 9+9= 2+9= 9+2= 8+6= 4+7= 7+6= 9+8= 7+9= 9+3= 7+8= 5+9= 8+7= 8+4= 6+9= 8+9= 3+8= 6+5= 7+5= 5+8= 6+7= 9+6= 3+9= 5+6= 5+7= 6+6= 7+7= 8+7= 8+4= 6+9= 7+5= 5+8= 6+7= 9+3= 7+8= 5+9=
8
8+5= 9+5= 9+7= 4+9= 8+5= 4+8=
9+4= 8+8= 4+9= 8+3= 9+7= 4+8= 7+4=
8+5= 9+5= 9+7= 7+4= 8+3=
20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= 6+8= 9+9= 2+9= 9+4= 9+3= 7+8= 5+9= 7+5= 5+8= 6+7= 9+6= 3+9= 5+6= 9+2= 8+6= 4+7= 7+5= 5+8= 6+7= 8+9= 3+8= 6+5= 20以内进位加法口算(8)
9+2= 8+6= 4+7= 6+8= 9+9= 2+9= 7+5= 5+8= 6+7= 9+3= 7+8= 5+9= 7+6= 9+8= 7+9= 6+9= 8+7= 8+4= 5+7= 6+6= 7+7= 8+9= 3+8= 6+5= 9+6= 3+9= 5+6= 7+6= 9+8= 7+9= 9+2= 8+6= 4+7= 6+8= 9+9= 2+9=
9
8+3= 7+4= 8+5= 8+8= 7+4= 4+8=
8+8= 9+4= 7+4= 8+3= 4+9= 9+7= 9+5= 4+8= 8+5= 4+9= 8+8= 9+4=
20以内进位加法口算(9)
7+6= 9+8= 7+9= 4+9= 6+9= 8+7= 8+4= 9+7= 9+2= 8+6= 4+7= 8+8= 5+7= 6+6= 7+7= 9+5= 6+8= 9+9= 2+9= 9+4= 9+3= 7+8= 5+9= 7+5= 5+8= 6+7= 9+6= 3+9= 5+6= 8+9= 3+8= 6+5= 6+8= 9+9= 2+9= 9+2= 8+6= 4+7= 5+7= 6+6= 7+7= 20以内进位加法口算(10)
8+9= 3+8= 6+5= 9+3= 7+8= 5+9= 7+6= 9+8= 7+9= 6+9= 8+7= 8+4= 9+2= 8+6= 4+7= 6+8= 9+9= 2+9= 7+5= 5+8= 6+7= 9+6= 3+9= 5+6= 5+7= 6+6= 7+7= 7+5= 5+8= 6+7= 6+8= 9+9= 2+9= 9+3= 7+8= 5+9= 10
8+3= 7+4=
8+5= 4+8= 9+4= 8+8= 9+5=
4+8= 8+3= 4+9= 9+7= 8+8= 9+4= 7+4=
8+5= 9+5= 7+4= 9+4= 8+3=
20以内加减混合练习( 一 )
9+4= 15-9= 11-9= 9+5= 16-7= 11-4= 12-9= 4+7= 2+9= 16-8= 12-7= 6+7= 9+7= 12-3= 15-6= 5+8= 16-7= 11-7= 13-9= 8+7= 7+5= 13-6= 12-4= 6+6= 11-3= 12-5= 14-7= 4+7= 13-8= 9+9= 11-8= 11-6= 7+5= 11-7= 13-5= 14-9= 12-8= 11-2= 14-6= 13-4= 7+5= 13-7= 14-5= 15-7= 18-9= 17-9= 8+4= 14-8= 15-9= 7+3= 8+6= 17-8= 11-5= 16-9= 15-8= 9+3= 12-7= 11-9= 15-6= 8+5=
20以内加减混合练习( 二 ) 12-4= 9+2= 14-8= 8+6= 13-7= 14-5= 8+7= 11-9= 8+6= 11-3= 13-9= 11-5= 16-7= 13-5= 11-5= 7+9= 8+4= 13-6= 14-6= 5+7= 12-9= 11-3= 9+8= 15-6= 12-5= 8+5= 5+7= 13-5= 11-6= 8+6= 8+4= 14-6= 7+6= 9+9= 18-9= 17-8= 16-9= 15-7= 11-7= 5+9= 7+8= 8+4= 17-8= 6+9= 18-9= 7+7= 12-9= 12-7= 3+9= 6+7= 12-7= 4+8= 13-5= 12-4= 14-8= 13-5= 3+8= 11-4= 7+5= 13-4=
11
20以内加减混合练习( 三 )
7+5= 13-7= 14-5= 15-7= 18-9= 17-9= 8+4= 14-8= 15-9= 7+3= 8+6= 17-8= 11-5= 16-9= 15-8= 9+3= 12-7= 11-9= 15-6= 8+5= 9+4= 15-9= 11-9= 9+5= 16-7= 11-4= 12-9= 4+7= 2+9= 16-8= 12-7= 6+7= 9+7= 12-3= 9+2= 5+8= 16-7= 13-9= 11-7= 8+7= 12-4= 15-6= 13-7= 8+6= 14-8= 11-3= 14-5= 8+7= 8+6= 11-9= 11-5= 13-9= 16-7= 13-5= 11-5= 7+9= 8+4= 14-6= 14-8= 5+7=
7+8= 8+4= 17-8= 6+9= 18-9= 7+7= 12-9= 12-7= 3+9= 12-7= 6+7= 13-5= 4+8= 13-4= 14-8= 3+8= 11-4= 9+8= 13-5= 7+5= 13-4= 12-9= 12-6= 15-6= 12-5= 8+5= 5+7= 13-5= 11-7= 8+6= 8+4= 14-6= 18-9= 17-8= 7+6= 9+9= 16-9= 15-7= 6+6= 5+9= 12-4= 11-7= 7+5= 13-6= 11-3= 12-5= 14-7= 4+7= 13-8= 9+9= 14-9= 11-8= 11-6= 11-7= 7+5= 13-5= 14-6= 13-4= 12-8= 11-2=
20以内加减混合练习( 四 ) 12
20以内加减混合练习( 五 )
9+2= 15-9= 8+8= 13-8= 11-3= 9+4= 16-7= 6+7= 2+9= 11-5= 8+6= 11-2= 9+7= 14-8= 13-9= 6+9= 12-7= 12-7= 14-9= 15-8= 8+8= 18-9= 11-3= 8+4= 15-7= 6+7= 13-9= 6+9= 2+9= 11-5= 12-9= 15-9= 7+7= 12-5= 14-9= 16-8= 9+8= 11-2= 13-7= 9+7= 5+8= 14-8= 12-3= 12-9= 7+5= 16-9= 15-8= 13-7= 8+4= 17-8= 11-9= 12-7= 9+8= 11-4= 15-6= 11-8= 4+9= 12-6= 12-7= 12-4=
20以内加减混合练习(六 ) 6+8= 12-9= 16-9= 7+5= 15-8= 12-4= 11-9= 11-7= 9+3= 17-9= 17-8= 5+8= 15-8= 11-3= 12-7= 11-4= 9+8= 12-7= 4+9= 12-6= 4+7= 17-9= 13-7= 15-7= 9+9= 14-8= 13-5= 5+6= 7+8= 7+9= 14-6= 12-8= 8+4= 11-6= 6+6= 13-8= 12-4= 13-6= 12-5= 14-8= 15-7= 9+9= 13-7= 7+8= 8+5= 5+7= 8+4= 11-6= 4+7= 13-8= 17-9= 14-6= 12-8= 7+8= 13-6= 6+6= 8+9= 17-8= 15-9= 9+8=
13
20以内加减混合练习(七 )
6+8= 12-9= 16-9= 7+5= 15-8= 12-4= 11-9= 11-7= 9+3= 17-9= 17-8= 5+8= 15-8= 11-3= 12-7= 11-4= 9+8= 12-7= 4+9= 12-6= 9+2= 15-9= 11-3= 9+4= 8+8= 13-8= 16-7= 6+7= 2+9= 11-5= 8+6= 11-2= 6+9= 13-9= 14-8= 9+7= 12-7= 12-7= 14-9= 15-8= 8+8= 18-9= 11-3= 8+4= 15-7= 6+7= 13-9= 6+9= 2+9= 11-5= 12-9= 15-9= 7+7= 12-5= 14-9= 16-8= 5+8= 11-2= 13-7= 9+7=
6+8= 12-9= 16-9= 7+5= 15-8= 12-4= 11-9= 11-7= 9+3= 9+8= 17-8= 5+8= 15-8= 11-3= 17-9= 12-7= 12-7= 11-4= 4+9= 12-6= 9+9= 15-7= 13-7= 14-8= 12-5= 5+7= 8+4= 11-6= 13-8= 17-9= 4+7= 7+8= 14-6= 12-8= 6+6= 13-6= 8+9= 17-8= 15-9= 9+8= 4+7= 17-9= 13-7= 15-7= 9+9= 14-8= 13-5= 5+6= 7+8= 7+9= 14-6= 12-8= 8+4= 11-6= 6+6= 13-6= 13-8= 8+5= 12-4= 7+8=
20以内加减混合练习( 八 ) 14
20以内加减混合练习( 九 )
7+5= 13-6= 12-4= 6+6= 11-3= 12-5= 14-7= 4+7= 9+9= 13-8= 15-8= 11-6= 7+5= 11-7= 13-5= 14-9= 12-4= 10-2= 14-6= 13-4= 7+8= 8+4= 17-8= 6+9= 18-9= 7+7= 12-9= 12-7= 3+9= 6+7= 12-7= 13-5= 4+8= 13-4= 9+8= 11-4= 13-5= 7+5= 14-8= 5+8= 13-4= 14-8= 12-3= 12-9= 7+5= 15-8= 16-9= 13-7= 8+4= 17-8= 11-9= 9+8= 11-4= 12-7= 4+9= 12-6= 15-6= 11-8= 12-7= 12-4=
9+4= 15-9= 11-9= 9+5= 16-7= 11-4= 12-9= 4+7= 2+9= 16-8= 12-7= 6+7= 9+7= 12-3= 15-6= 5+8= 16-7= 11-7= 13-9= 8+7= 6+8= 12-9= 16-9= 7+5= 15-8= 12-4= 11-9= 11-7= 9+3= 17-9= 17-8= 5+8= 15-8= 9+8= 11-3= 12-7= 12-7= 11-4= 4+9= 12-6= 12-4= 9+2= 14-8= 8+6= 13-7= 14-5= 8+7= 11-9= 8+6= 11-3= 15-9= 11-5= 16-7= 13-5= 11-5= 7+9= 8+4= 13-6= 14-6= 5+7=
20以内加减混合练习( 十 )
15
整十数加减法计算(1)
30+7= 65-5= 44-4= 1+80= 84-80= 74-4= 28-20= 60+7= 70-20= 60+40= 70+30= 30-10= 50-20= 5+90= 46-6= 10+50= 70-30= 71-1= 60+30= 30+70= 100-50= 50+50= 37-30= 91-1= 93-3= 6+40= 7+60= 30-0= 37-7= 100-60= 76-6= 8+70= 8+60= 80-40= 85-5= 2+30= 80+7= 79-9= 70+8= 55-50= 60+8= 80+8= 70+30= 7+70= 60-20= 55-5= 77-7= 50+50=
46-6= 40+5= 78-8= 26-6= 86-80= 50+7= 100-40= 40+9= 30+10= 73-3= 8+20= 76-70= 46-6= 30+50= 80+10= 100-30= 40+30= 84-4= 40+50= 78-8= 100-70= 100-90= 62-10= 92-90= 98-8= 55-5= 60+3= 100-80= 80-60= 47-40= 整十数加减法计算(2)
20+20= 10+80= 6+80= 70+20= 100-20= 59-9= 70+6= 50+20= 30+20= 9+20= 30+6= 50+3= 9+90= 100-100= 10+70= 8+90= 61-60= 52-50= 86-6= 80-50= 7+90= 36-6= 30+60= 90-70= 16
54-4= 6+40= 69-9= 70+30= 68-8= 27-7= 53-50= 72-2= 68-8= 30+40= 80+10= 0+100= 86-6= 70+8= 35-35= 38-8= 60-30= 80+9=
整十数加减法计算(3)
2+30= 50+7= 80-60= 47-7= 27-20= 4+80= 28-8= 60+7= 70-20= 60+40= 10+50= 70-30= 71-1= 60+30= 30+70= 76-6= 46-40= 40+50= 78-8= 54-5= 39-9= 65-5= 44-4= 1+80= 84-4= 70+30= 30-10= 50-20= 5+90= 46-6= 100-50= 50+2= 97-7= 85-80= 8+60= 80-40= 60-20= 100-60= 60+8= 80+8= 79-9= 70+30= 7+70= 45-40= 77-70= 70+8= 55-5= 50+50=
50+50= 37-7= 91-1= 7+60= 30-10= 37-7= 40+5= 100-70= 100-90= 86-6= 60+3= 100-80= 78-8= 61-0= 92-2= 26-6= 98-8= 55-5=
整十数加减法计算(4)
80+10= 91-90= 52-0= 74-70= 8+60= 70-50= 8+20= 30+20= 91+9= 76-6= 30+6= 50+3= 40+9= 6+80= 70+20= 46-6= 9+90= 100-100= 30+50= 10+70= 8+90= 100-30= 86-80= 80-50= 40+30= 7+90= 36-6= 30+10= 100-20= 59-50= 73-3= 70+1= 50+20= 84-4= 30+60= 90-70= 17
93-3= 100-60= 6+40= 68-60= 69-9= 70+30=
35-35= 67-7= 80+10= 40+60= 72-70= 86-6= 70+8= 38-30= 60-30= 68-8= 30+40= 80+9=
整十数加减法计算 (5)
95-5= 73-70= 70+1= 50+20= 3+40= 80-40= 26-6= 98-8= 55-5= 70+30= 76-6= 46-6= 40+50= 78-8= 54-4= 39-9= 65-5= 44-40= 1+80= 87-80= 74-4= 28-8= 60+7= 70-20= 60+40= 35-5= 6+40= 60+8= 7+70= 100-70= 80+7= 60-60= 80+6= 79-9= 70+8= 55-50= 60+8= 80+8= 70+30= 7+70= 60-20= 55-5= 77-7= 50+50= 100-30= 86-6= 80-50= 7+60= 30-10= 37-30= 8+20= 30+20= 9+20= 30+50= 10+70= 8+90= 73-3= 8+60= 70-50= 100-40= 20+20= 10+80= 97-7= 8+60= 70-50= 整十数加减法计算(6)
100-40= 20+20= 10+80= 40+9= 6+80= 70+20= 30+10= 100-20= 59-9= 73-3= 70+6= 50+20= 8+20= 30+20= 9+20= 76-70= 30+6= 50+3= 46-40= 9+90= 100-100= 30+50= 10+70= 8+90= 80+10= 61-60= 52-50= 100-30= 86-6= 80-50= 40+30= 7+90= 36-6= 84-4= 30+60= 90-70= 18
88-8= 100-60= 80+10= 7+80= 72-2= 53-3= 97-7=
53-50= 72-2= 68-8= 30+40= 80+10= 20+7= 86-6= 70+8= 35-30= 38-8= 60-30= 80+9=
整十数加减法(7)
40+6= 4+70= 73-3= 20+6= 78-8= 98-90= 80+7= 60+3= 88-8= 60+40=
5+60= 30+1= 39-9= 20+80= 38-8= 40+60= 70+7= 84-4= 12-2= 50+5=
75-5= 69-9= 90+8= 50+6= 50+50= 60+1= 10+30= 90+1= 3+30= 51-1=
50+6= 3+70= 90+10= 50+5= 60-50= 70+20= 20+80= 65-5= 90+2= 59-9=
85-5= 3+90= 90+2= 10+40= 30+7= 50+30= 61-60= 90+1= 23-3= 91-90= 4+30= 90-50= 32-30= 67-7= 78-70= 45-5= 4+40= 77-7= 14-4=
90+6=
整十数加减法(8)
16-6= 92-2= 85-5= 2+50= 70+30= 55-50= 50+7= 99-90= 80+3= 10+90= 83-3= 30+7= 22-20= 20+3= 30+8= 10+1= 60+7= 4+40= 91-1=
90+4=
19
74-4= 59-9= 98-8= 45-5= 5+50= 60+9= 10+2= 89-9= 20+3= 41-1=
70-60= 37-30= 90+1= 2+40= 57-7= 72-2= 70+8= 65-5= 90+2= 48-8=
17-7= 24-20= 40+9= 83-3= 40+50= 60+5= 50+4= 91-1= 50+6= 36-6=
37-7= 97-90= 80+6= 40+50= 95-5= 15-5= 44-40= 51-1= 70+9= 3+20=
整十数加减法(9)
52-2= 36-6= 76-70= 20+30= 60+40= 40+7= 80+9= 67-7= 91-1= 20+8=
15-5= 87-80= 32-2= 30+5= 50+9= 4+50= 30+70= 60+9= 20+6= 70+6=
90+10= 70+1= 2+20= 60+7= 70+30= 82-80= 40+60= 3+40= 66-6= 80+5=
70+1= 34-4= 88-80= 93-3= 90-60= 22-2= 90-30= 83-3= 80+10= 86-6=
20+9= 4+30= 10+4= 90+1= 4+30= 89-9= 90+1= 70-50= 99-9= 57-50= 25-20= 20+50= 57-7= 87-80= 40+50= 90-60= 77-7= 52-2= 90+6=
80+2=
整十数加减法(10)
80+20= 90-20= 56-50= 3+30= 90-90= 20+7= 10+3= 66-6= 2+40= 10+80= 26-6= 45-5= 5+40= 90+4= 40+50= 90-30= 90+4= 80+1= 93-3=
50+1=
20
30+9= 47-7= 73-3= 20+6= 70+8= 88-80= 7+60= 20+3= 98-8= 3+50=
30+1= 39-9= 10-3= 30-7= 40+60= 60+7= 74-70= 10-2= 50+5= 10+70=
75-70= 69-9= 98-90= 56-6= 50+5= 60+1= 10+3= 80+20= 2+60= 41-40=
3+90= 90+10= 5+40= 57-7= 60+40= 70+8= 65-60= 90+2= 49-9= 50+8=
整十数加减法(11)
70+4= 80+1= 10+6= 59-9= 12-2= 30+2= 21-1= 66-6= 22-2= 90+3=
60+3= 46-6= 60+2= 70+2= 10+60= 2+60= 40+60= 89-9= 42-40= 80-50=
10+80= 90+3= 30+2= 80+9= 80+8= 10-4= 46-6= 30+4= 66-6= 80+5=
34-4= 88-8= 28-20= 75-5= 10+80= 90-80= 35-5= 83-80= 83-3= 70+9=
17-7= 96-6= 35-5= 10-3= 40+9= 40+9= 83-3= 83-3= 40+5= 40+5= 60+5= 50+4= 50+4= 40+3= 99-9= 39-9= 50+50= 50+5= 36-6=
35-5=
整十数加减法(12)
90+6= 90+6= 70+9= 70+9= 95-5= 96-6= 50+9= 15-5= 80+8= 30+40= 60+5= 41-1= 24-20= 70+8= 60+7= 22-2= 20+9= 74-4= 68-8=
20+4=
21
50+2= 60+8= 94-4= 30+7= 20+9= 90-30= 90-80= 40+5= 61-1= 20+80=
47-7= 60-50= 50+9= 66-60= 80+8= 90+6= 64-4= 60+7= 30+9= 79-9=
60+3= 70+9= 90-50= 4+80= 71-1= 92-2= 30+9= 56-50= 2+70= 90+2=
6+20= 100-80= 60+1= 70+1= 70+30= 10+7= 45-5= 70+8= 41-40= 81-1=
22