20以内减法(破十法)练习题.doc
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- 2018-09-27 发布|
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20以内减法练习题(破十法)
7例:15 — 8 =
7
510
5
10
2
2
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 =
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 =
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 =
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