(完整版)一年级数学20以内破十法减法练习题
绝世美人儿
923次浏览
2021年01月22日 06:02
最佳经验
本文由作者推荐
-爱国诗大全
18
—
9
□
15
—
9
□
12
—
9
□
16
—
8
□
13
—
8
□
16
—
7
=
20
以内破十法减法练习题
凑十法儿歌
一九一九好朋友，
二八二八手拉手。
三七三七真亲密，
四六四六一起走，
五五凑成一双手。
看大数，分小数，
凑成十，加剩数。
大数记心里，小数记手里
17
—
9
16
—
9 =
匚
|
=
□
14
—
13
—
9 =
9
□
□
11
—
9
□
□
15
—
14
—
8 =
8
□
□
12
—
8 =
11
—
8 =
□
□
15
—
7 =
14
—
7
=
1
□
2
13
—
4 =
16
—
7
=
□
18
—
9 =
□
15
—
9 =
13
—
7 =
□
16
—
8 =
□
12
—
4 =
15
—
7 =
□
17
—
9
=
□
14
—
9
□
12
—
7 =
匚
□
11
—
9
15
—
8
□
3
11
—
4
14
—
7 =
口
□
—
9 =
匚
|
□
13
—
9 =
□
11
—
7 =
□
17
—
8 =
□
—
8 =
□
□
16
14
12
—
3 =
匚
□
13
—
5 =
匚
□
13
—
8 =
匚
□
16
—
7 =
匚
□
12
—
6 =
匚
□
15
—
9 =
匚
□
12
—
4 =
□
12
—
5 =
□
12
—
8 =
□
15
—
7 =
□
11
—
6
□
—
9 =
匚
□
4
11
—
4 =
□
11
—
2 =
□
11
—
5 =
□
1
—
8 =
1
□
14
—
7
=
□
14
—
5 =
□
13
—
9 =
□
14
12
—
3 =
匚
□
13
—
5 =
匚
□
13
—
8 =
匚
□
16
—
7 =
匚
□
12
—
6 =
匚
□
15
—
9 =
匚
□
12
—
4 =
□
12
—
5
=
□
12
—
8 =
□
15
—
7 =
□
11
—
6
□
—
9 =
匚
□
5
11
—
4 =
□
11
—
2 =
□
11
—
5 =
□
1
—
8 =
1
□
14
—
7
=
□
14
—
5 =
□
13
—
9 =
□
14
13
—
4 =
16
—
7
=
□
18
—
9 =
□
15
—
9 =
13
—
7 =
□
16
—
8 =
□
12
—
4 =
15
—
7 =
□
17
—
9
=
□
14
—
9
□
12
—
7 =
匚
□
11
—
9
15
—
8 =
匚
□
6
11
—
4 =
□
14
—
7 =
口
□
16
—
9 =
匚
|
□
13
—
9 =
□
11
—
7 =
□
17
—
8 =
□
14
—
8 =
□
□
13
—
4 =
16
—
7
=
□
18
—
9 =
□
15
—
9 =
13
—
7 =
□
16
—
8 =
□
12
—
4 =
15
—
7 =
□
17
—
9
=
□
14
—
9
□
12
—
7 =
匚
□
11
—
9
15
—
8 =
匚
□
7
11
—
4 =
□
14
—
7 =
口
□
16
—
9 =
匚
|
□
13
—
9 =
□
11
—
7 =
□
17
—
8 =
□
14
—
8 =
□
□
12
—
3 =
匚
□
13
—
5 =
匚
□
13
—
8 =
匚
□
16
—
7 =
匚
□
12
—
6 =
匚
□
15
—
9 =
匚
□
12
—
4 =
□
12
—
5
=
□
12
—
8 =
□
15
—
7 =
□
11
—
6
□
—
9 =
匚
□
8
11
—
4 =
□
11
—
2 =
□
11
—
5 =
□
1
—
8 =
1
□
14
—
7
=
□
14
—
5 =
□
13
—
9 =
□
14