10以内分成与组成
(2的分成与组成)
2 2 0
2-0= 1 2-1= 0
1
2 0+2= 2 1+1 =
-1=1
=2
1+ +0=2 2- =2
( 3的分成与组成)
3 3
3-1= 1 0 3-0=
3 3
3-2= 2 3 3-3=
1 2 1+2= 2 1 2+1= 3 0
3+0=
3 2 3 0 1 1 2 2 1
3 3 3
-0=3 -1= 2 -2=1
3- =2 3- =1 3-
=0 1+=3 2+ = 3
3+ =3
(4的分成与组成)
4 4
4-1= 1 0 4-0=
4 4 4
4-4= 2 4-2=
3 4-3= 4
4 4 4 4
1 2 3 4
1 3 1+3= 2
2 2+3= 3 1 3+2=
4
3 2 1 1 3 2 2 3 1
4 4 4 4
-0=4 -1=3 -2=2 -3= 1
4- =3 4- =2 4-
=1 4- = 0 1+
=4 2+ = 4 3+ =4 4+ = 4
(5的分成与组成)
5 5 5
1 5-1= 2
5-2= 3 5-3= 5
5
4 5-4= 5 5-5=
5 5 5 5 5
1 2 3 4 5
1 4 1+4= 2 3
2+3= 3 2 3+2= 4 1
4+1=
1 4 2 3 3 2 4 1 1 2 3 4
5
5 5 5
-3= 2 -2=3 -0=5 -1=4
= 1 5- 5- =2
=3 5- =4 5- 1+
=5 2+ = 5 3+ = 5 4+ =5
(6的分成与组成)
6 6
6 6-3= 3 2
6-2= 1 6-1=
6 6 6
6-6= 6-4= 5 6-5=
6 4
6 6 6 6 6 6
6 1 2 3 4 5
2+4= 3 3+3=
3 4 1 5 1+5= 2 1
5 2 5+1= 4+2= 4
3 1 3 4 2 5 2 5 1 4
1 0 2 5 4 3
6 6 6 6 6 6
-0=6 -1=5 -2=4 -3= 3
-4=2 -5=1 6-
=5 6- =4 6- =3
6- = 6- =1 1+
=6 2+ = 6 3+ =6 4+ = 6
(7的分成与组成)
7 7
7 7-3= 3
2 7-2= 1 7-1=
7 7 7
7-4= 5 4
7-5= 6 7-6=
7 7 7 7 7 7 7
2 1 3 4 7 5 6
4 3+4= 2+5=
1 6 1+6= 2 5 3
4+3= 4 3 5 2 6 1 6+1= 5+2=
5 2 6 1 3 1 3 4 4 6 2 5
0 1 2 3 4 5 6 7
7 7 7 7 7 7 7 7
-0=7 -1=6 -2=5 -3= 4
-4=3 -5=2
-6= 1 -7=0 7-
=7 7- =6 7- =5 7- = 4
7- =3 7- = 2 7- =1
7- = 0 1+ =7 2+
= 7 3+ =7 4+ = 7
5+ =7 6+ = 7
自主练习:(有关7的加减法练习题-自己出题)
8的分成与组成
8 8 8
8-1= 2
8-2= 3 1 8-3= 8
8 8
8-6= 8-5= 4 6 8-4=
5 8 8
8 8-0=
8-8= 7 8-7= 8 0
8 8 8 8 8 8 8 8
6 4 2 1 3 5 8
7
5 3+5= 3 2+6=
2 1+7= 1 7 6
3 5 4+4= 4 4 6+2= 2 5+3=
6
7 1 7+1=
1 7 2 6 3 5 4 4 3 5 2 6 1 7
0 1 2 3 4 5 6 7
8 8 8 8 8 8 8 8
-0=8 -1=7 -2=6-3= 5
-4=4 -5=3 -6= 2
-7=1 8- =8 8-
= 7 8- =6 8- = 5
8- =4 8- = 3 8- =2 8- = 1
1+ =8 2+ = 8
3+ =8 4+ = 8 5+
=8 6+ = 8 7+ =8 8+ = 8
自主练习;(有关8的加减法练习题-自己出题)
9的分成与组成
9 9 9
9-1= 2
9-2= 3 1 9-3= 9
9 9 6
9-6= 5 9-5= 4 9-4=
9 9
9 8 9-8=
9-9= 7 9 9-7= 9
9
9-9= 0 0 9-0=
1
9 9 9 9 9 9 9 9
9
8 7 9 6 4 2 1 3
5
3 8 1+8= 1