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Table of contents
LEARNING THE NUMBERS TO 20
10
11
12
13
14
15
1
10
10
10
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
10
10
10
10
5
10
+
=15
+
1
=11
+
2
=12
+
3
=13
+
4
=14
fifteen
eleven
twelve
thirteen
fourteen
10
15
15
12
13
14
11
15
15
15
15
15
15
15
15
15
11
12
11
12
11
12
11
12
11
12
11
12
11
12
11
12
11
12
11
12
13
14
13
14
13
14
13
14
13
14
13
14
13
14
13
14
13
14
13
14
10
16
17
18
19
20
1
10
10
10
10
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
10
10
10
10
10
10
+
=20
+
6
=16
+
7
=17
+
8
=18
+
9
=19
twenty
sixteen
seventeen
eighteen
nineteen
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
20
20
17
18
19
16
20
20
20
20
20
20
20
20
20
16
17
16
17
16
17
16
17
16
17
16
17
16
17
16
17
16
17
16
17
18
19
18
19
18
19
18
19
18
19
18
19
18
19
18
19
18
19
18
19
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