1 / 12 一年级数学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
18 — 9 = 17 — 9 = 16 — 9 =
15 — 9 = 14 — 9 = 13
— 9 =
12 — 9 = 11 — 9 = 17 — 8 =
16 — 8 = 15 — 8 = 14 — 8 =
13 — 8 = 12 — 8 = 11 — 8 =
16 — 7 = 15 — 7 = 14 — 7 =
2 / 12
13 — 7 = 12 — 7 = 11 — 7 =
15 — 6 = 14 — 6 = 13 — 6 =
12 — 6 = 11 — 6 = 14 — 5 =
13 — 5 = 12 — 5 = 11 — 5 =
13 — 4 = 12 — 4 = 11 — 4 =
12 — 3 = 11 — 3 = 11 — 2 =
13 — 5 = 12 — 5 = 11 — 5 =
13 — 4 = 12 — 4 = 11 — 4 =
3 / 12
16 — 7 = 15 — 7 = 14 — 7 =
18 — 9 = 17 — 9 = 16 — 9 =
15 — 9 = 14 — 9 = 13 — 9 =
13 — 7 = 12 — 7 = 11 — 7 =
12 — 9 = 11 — 9 = 17 — 8 =
16 — 8 = 15 — 8 = 14 — 8 =
13 — 4 = 12 — 4 = 11 — 4 =
4 / 12
12 — 3 = 11 — 3 = 11 — 2 =
13 — 5 = 12 — 5 = 11 — 5 =
13 — 8 = 12 — 8 = 11 — 8 =
16 — 7 = 15 — 7 = 14 — 7 =
12 — 6 = 11 — 6 = 14 — 5 =
15 — 9 = 14 — 9 = 13 — 9 =
13 — 4 = 12 — 4 = 11 — 4 =
5 / 12
12 — 3 = 11 — 3 = 11 — 2 =
13 — 5 = 12 — 5 = 11 — 5 =
13 — 8 = 12 — 8 = 11 — 8 =
16 — 7 = 15 — 7 = 14 — 7 =
12 — 6 = 11 — 6 = 14 — 5 =
15 — 9 = 14 — 9 = 13 — 9 =
13 — 4 = 12 — 4 = 11 — 4 =
6 / 12
16 — 7 = 15 — 7 = 14 — 7 =
18 — 9 = 17 — 9 = 16 — 9 =
15 — 9 = 14 — 9 = 13 — 9 =
13 — 7 = 12 — 7 = 11 — 7 =
12 — 9 = 11 — 9 = 17 — 8 =
16 — 8 = 15 — 8 = 14 — 8 =
13 — 4 = 12 — 4 = 11 — 4 =
7 / 12
16 — 7 = 15 — 7 = 14 — 7 =
18 — 9 = 17 — 9 = 16 — 9 =
15 — 9 = 14 — 9 = 13 — 9 =
13 — 7 = 12 — 7 = 11 — 7 =
12 — 9 = 11 — 9 = 17 — 8 =
16 — 8 = 15 — 8 = 14 — 8 =
13 — 4 = 12 — 4 = 11 — 4 =
8 / 12 12 — 3 = 11 — 3 = 11 — 2 =
13 — 5 = 12 — 5 = 11 — 5 =
13 — 8 = 12 — 8 = 11 — 8 =
16 — 7 = 15 — 7 = 14 — 7 =
12 — 6 = 11 — 6 = 14 — 5 =
15 — 9 = 14 — 9 = 13 — 9 =
13 — 4 = 12 — 4 = 11 — 4 =
12 — 3 = 11 — 3 = 11 — 2 =
9 / 12
13 — 5 = 12 — 5 = 11 — 5 =
13 — 8 = 12 — 8 = 11 — 8 =
16 — 7 = 15 — 7 = 14 — 7 =
12 — 6 = 11 — 6 = 14 — 5 =
15 — 9 = 14 — 9 = 13 — 9 =
13 — 4 = 12 — 4 = 11 — 4 =
16 — 7 = 15 — 7 = 14 — 7 =