20以内进位减法练习题（凑十法）
进位加法（凑十法口诀：看大数，分小数，凑成十，算得数。） 5 + 9 = 6 + 9 = 4 + 9 =
9 + 9
8 + 9
6 + 8
7 + 8
7 + 9
= 7 + 9 =
= 2 + 9 =
= 3 + 8 =
= 8 + 9 =
= 5 + 8 = 1
3 + 9 = 8 + 8 = 7 + 7 = 4 + 8 = 7 + 8 =
6 + 7 = 6 + 9 = 6 + 6 =
4 + 7 =
5 + 7 =
5 + 8 =
5 + 7 =
5 + 6 =
5 + 6 = 6 + 7 = 4 + 9 = 4 + 8 = 4 + 7 = 2
6 + 8 = 5 + 9 = 3 + 9 = 3 + 8 = 2 + 9 =
6 + 9 = 3 + 9 = 8 + 9 =
5 + 9 =
4 + 9 =
8 + 7 =
8 + 8 =
9 + 8 =
2 + 9 = 7 + 9 = 8 + 5 = 8 + 5 = 8 + 4 = 3
9 + 9 = 8 + 8 = 9 + 7 = 9 + 7 = 8 + 7 =
8 + 6 = 8 + 3 = 7 + 7 =
7 + 6 =
6 + 5 =
9 + 6 =
8 + 6 =
6 + 5 =
7 + 4 = 7 + 6 = 6 + 6 = 6 + 5 = 9 + 8 = 4
7 + 5 = 8 + 7 = 8 + 5 = 9 + 5 = 9 + 7 =
9 + 4 = 9 + 3 = 9 + 6 =
8 + 4 =
7 + 4 =
8 + 5 =
6 + 5 =
8 + 4 =
8 + 3 = 7 + 7 = 7 + 6 = 7 + 5 = 7 + 4 = 5
9 + 5 = 9 + 7 = 6 + 6 = 9 + 4 = 9 + 2 =
9 + 3 = 8 + 3 = 9 + 5 =
7 + 6 = 7 + 4 = 7 + 5 =
9 + 4 =
9 + 3 =
8 + 7 =
8 + 5 =
8 + 4 = 8 + 3 = 9 + 8 = 8 + 4 = 6
7 + 4 = 9 + 2 = 8 + 6 = 8 + 3 =
9 + 7 = 8 + 7 = 7 + 7 =
7 + 6 =
9 + 6 =
6 + 6 =
8 + 5 =
8 + 7 =
7 + 4 = 8 + 6 = 6 + 5 = 7 + 5 = 9 + 8 = 7
7 + 5 = 7 + 6 = 9 + 5 = 6 + 5 = 8 + 6 =
9 + 4 = 8 + 4 = 7 + 4 =
9 + 3 =
9 + 6 =
8 + 3 = 9 + 5 = 8
9 + 2 = 9 + 4 =
20以内退位减法练习题（破十法）
退位减法（破十法口诀：看大数，分出10，减小数，加剩数。）
18 — 9 = 17 — 9 = 16 — 9 =
15 — 9 =
12 — 9 =
16 — 8 =
13 — 8 =
14 — 9 = 11 — 9 = 15 — 8 = 12 — 8 = 9
13 — 9 = 17 — 8 = 14 — 8 = 11 — 8 =
16 — 7 = 15 — 7 = 14 — 7 =
13 — 7
15 — 6
12 — 6
13 — 5
= = = = 12 — 7 = 14 — 6 = 11 — 6 = 12 — 5 = 10
11 — 7 = 13 — 6 = 14 — 5 = 11 — 5 =
13 — 4 = 12 — 4 = 11 — 4 =
12 — 3 =
13 — 5 =
13 — 4 =
16 — 7 =
11 — 3 = 12 — 5 = 12 — 4 = 15 — 7 = 11
11 — 2 = 11 — 5 = 11 — 4 = 14 — 7 =
18 — 9 = 17 — 9 = 16 — 9 =
15 — 9
13 — 7
12 — 9
16 — 8
= 14 — 9 = 12 — 7 = 11 — 9 = 15 — 8 = = = = 12
13 — 9 = 11 — 7 = 17 — 8 = 14 — 8 =
13 — 4 = 12 — 4 = 11 — 4 =
12 — 3 =
13 — 5 =
13 — 8 =
16 — 7 =
11 — 3 = 12 — 5 = 12 — 8 = 15 — 7 = 13
11 — 2 = 11 — 5 = 11 — 8 = 14 — 7 =
12 — 6 = 11 — 6 = 14 — 5 =
15 — 9
13 — 4
12 — 3
13 — 5
= 14 — 9 = = 12 — 4 = = 11 — 3 = = 12 — 5 = 14
13 — 9 = 11 — 4 = 11 — 2 = 11 — 5 =
13 — 8 = 12 — 8 = 11 — 8 =
16 — 7 =
12 — 6 =
15 — 9 =
13 — 4 =
15 — 7 = 11 — 6 = 14 — 9 = 12 — 4 = 15
14 — 7 = 14 — 5 = 13 — 9 = 11 — 4 =
16 — 7 = 15 — 7 = 14 — 7 =
18 — 9
15 — 9
13 — 7
12 — 9
= = = = 17 — 9 = 14 — 9 = 12 — 7 = 11 — 9 = 16
16 — 9 = 13 — 9 = 11 — 7 = 17 — 8 =
16 — 8 = 15 — 8 = 14 — 8 =
13 — 4 =
16 — 7 =
18 — 9 =
15 — 9 =
12 — 4 = 15 — 7 = 17 — 9 = 14 — 9 = 17
11 — 4 = 14 — 7 = 16 — 9 = 13 — 9 =
13 — 7 = 12 — 7 = 11 — 7 =
12 — 9
16 — 8
13 — 4
12 — 3
= = = = 11 — 9 15 — 8 12 — 4 11 — 3 = 17 — 8 = = 14 — 8 = = 11 — 4 = = 11 — 2 = 18
13 — 5 = 12 — 5 = 11 — 5 =
13 — 8 =
16 — 7 =
12 — 6 =
15 — 9 =
12 — 8 = 15 — 7 = 11 — 6 = 14 — 9 = 19
11 — 8 = 14 — 7 = 14 — 5 = 13 — 9 =
13 — 4 = 12 — 4 = 11 — 4 =
12 — 3 =
13 — 5 =
13 — 8 =
16 — 7 =
11 — 3 = 12 — 5 = 12 — 8 = 15 — 7 = 20
11 — 2 = 11 — 5 = 11 — 8 = 14 — 7 =
12 — 6 = 11 — 6 = 14 — 5 =
15 — 9 =
13 — 4 =
16 — 7 =
18 — 9 =
14 — 9 = 12 — 4 = 15 — 7 = 17 — 9 = 21
13 — 9 = 11 — 4 = 14 — 7 = 16 — 9 =
15 — 9 = 14 — 9 = 13 — 9 =
13 — 7
12 — 9
16 — 8
13 — 4
= = = = 12 — 7 11 — 9 15 — 8 12 — 4 = 11 — 7 = 17 — 8 = 14 — 8 = 11 — 4 22
= = = =
16 — 7 = 15 — 7 = 14 — 7 =
18 — 9 = 17 — 9 = 16 — 9 =
15 — 9 =
13 — 7 =
12 — 9 =
14 — 9 = 12 — 7 = 11 — 9 = 23
13 — 9 = 11 — 7 = 17 — 8 =
16 — 8 = 15 — 8 = 14 — 8 =
13 — 4
12 — 3
13 — 5
13 — 8
= = = = 12 — 4 11 — 3 12 — 5 12 — 8 = 11 — 4 = 11 — 2 = 11 — 5 = 11 — 8 24
= = = =
16 — 7 = 15 — 7 = 14 — 7 =
12 — 6
15 — 9
13 — 4
12 — 3
= 11 — 6 = 14 — 9 = 12 — 4 = 11 — 3 = 14 — 5 = = 13 — 9 = = 11 — 4 = = 11 — 2 = 25
13 — 5 = 12 — 5 = 11 — 5 =
13 — 8 =
16 — 7 =
12 — 6 =
15 — 9 =
12 — 8 = 15 — 7 = 11 — 6 = 14 — 9 = 26
11 — 8 = 14 — 7 = 14 — 5 = 13 — 9 =
13 — 4 = 12 — 4 = 11 — 4 =
16 — 7 = 15 — 7 = 14 — 7 =
18 — 9 =
15 — 9 =
13 — 7 =
17 — 9 = 14 — 9 = 12 — 7 = 27
16 — 9 = 13 — 9 = 11 — 7 =
12 — 9 = 11 — 9 = 17 — 8 =
16 — 8
= 15 — 8 = 14 — 8 28
=
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