1. 3. 12 .) - · pdf file2 สําหรับครู 1....

1
6
1. 2. 3.
4.
12 1 2 3 4 5 (...) 6 ... 7 ... 8 (...) 9 ... 10 ... 11 ... 12 ...

2
1.
2. 3.
30
4.
5.
6.

3
1. 2.
3.
4.
5.

5
3 2
4 12 5 12 12 10
0 2
12 4 = 3 0 12 5 = 2 2 12 4 12 5 2
(1) 24 3 (2) 42 7 (3) 74 8 (4) 35 5 (5) 55 8 (6) 42 6 (7) 11 3 (8) 36 6 (9) 305 5 (10) 28 2
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1
0
1

6
4 8 13 28 24 33
(1) 2 8 17 18 15 12 (2) 3 21 30 27 23 90 (3) 5 20 34 65 40 27 (4) 6 36 42 12 48 55 (5) 7 56 28 23 42 34
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2

7
28 4 = 7 12 6 = 2 12 5 = 2 2
28 4 4 28 12 6 6 12 12 5 5 12
1
2 8
8 2 = 4 2 8 2 8
2
(1) 3 27
27 3 = .......................................................................................................
(2) 5 50
50..... ...=... ............................................................................. .......................................................................................................
(3) 8 65 ............................................................................................................ ......................................................................................................
(4) 9 81 ............................................................................................................ ......................................................................................................
(5) 7 56 ........................................................................................................... ......................................................................................................

8
4 4 7 12 24 45 36 (1) 2 2 5 14 23 26 38 (2) 7 7 35 21 64 89 49 (3) 5 5 26 30 45 67 80 (4) 3 3 33 19 27 39 44 (5) 9 9 45 28 54 32 81
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9
6 6 1 1 6 6 2 2 6 6 3 3 6 6 4 4 6 6 5 5 6 6 6 6 6 6 1, 2 , 3 , 6 6 1 , 2 , 3 6
6 1, 2, 3, 6 12 1, 2, 3, 4, 6, 12 1 2 3 6 1 2 3 4 6 12
23 = 6
16 = 6
26 = 12
34 = 12
112 = 12

10
(1) 4 ...1,...2,...4............................................................................................. 4 ........3........ ....1,..2.........4 ............................................................. (2) 10 ............................................................................................. 10 ........... .............................................................................................. (3) 22 ......................................................................................................... 22 ........... . ............................................................. (4) 34 ......................................................................................................... 34 ........... .... ............. (5) 40 .......................................................................................................... 40 ......... ................................................................................................... (6) 14 (7) 27 .... (8) 81 . (9) 26 (10) 32
3
1

11
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8 1, 2, 4, 8
2
1) 12 ............................................................
2) 15 ........................................
3) 18 .......................................................
4) 20 ............................................................
5) 24 ............................................................
6) 28 ............................................................
7) 30 ............................................................
8) 36 ............................................................
10) 16 ............................................................
9) 45 ............................................................

12
(1) 24 3 (2) 42 7 (3) 74 8
(4) 35 5 (5) 55 8
(6) 42 6 (7) 11 3
(8) 36 6 (9) 305 5 (10) 28 2 2 (1) 2 8 17 18 15 12 (2) 3 21 30 27 23 90 (3) 5 20 34 65 40 27 (4) 6 36 42 12 48 55 (5) 7 56 28 23 42 34
1

13
1 (1) 3 27
27 3 = 9 3 27 3 27 (2) 5 50
50 5 = 10 5 50 5 50 (3) 8 65
65 8 = 8 1 . 8 65 8 65 (4) 9 81
81 9 = 9 9 81 9 81 (5) 7 56
56 7 = 8 7 56 7 56 2 (1) 2 2 5 14 23 26 38 (2) 7 7 35 21 64 89 49 (3) 5 5 26 30 45 67 80 (4) 3 3 33 19 27 39 44 (5) 9 9 45 28 54 32 81
2

14
1 (1) 4 ...1,...2,...4.... 4 ........3........ ....1...2.........4 .. (2) 10 1, 2, 5, 10 10 .......4........ 1, 2, 5 10 (3) 22 1, 2, 11, 22 22 ........4....... 1, 2, 11 22 (4) 34 1, 2, 17, 34 34 .......4.... 1, 2, 17 34 (5) 40 1, 2, 4, 5, 8, 10, 20, 40 40 ......8.... 1, 2, 4, 5, 8, 10, 20 40 (6) 14 1, 2, 7 14 (7) 27 1, 3, 9 27 (8) 81 1, 3, 9, 27 81 (9) 26 1, 2, 13 26 (10) 32 1, 2, 4, 8, 16 32 2 1) 12 1, 2, 3, 4, 6, 12 2) 15 1, 3, 5, 15 3) 18 1, 2, 3, 6, 9, 18 4) 20 1, 2, 4, 5, 10, 20 5) 24 1, 2, 3, 4, 6, 8, 12, 24 6) 28 1, 2, 4, 7, 14, 28 7) 30 1, 2, 3, 5, 6, 10, 15, 30 8) 36 1, 2, 3, 4, 6, 9, 12, 18, 36 9) 45 1, 3, 5, 9, 15, 45 10) 16 1, 2, 4, 8, 16
3

15
1
1. 20 . 1, 2, 3, 4, 20 . 2, 4, 5, 10, 20 . 1, 2, 4, 5, 10, 20 . 2, 3, 4, 5, 10, 20 2. 3 . 6, 9, 12, 14, 21 . 9, 12, 21, 24, 27 . 3, 8, 12, 16, 21 . 9, 12, 18, 20, 24 3. 91 . 1 91 . 1, 7 91 . 1, 3, 7 91 . 1, 7, 13 91 4. . 7 14 . 8 58 . 9 91 . 10 101 5. 6 102 . 6

1. 3. 12 .) - · pdf file2 สําหรับครู 1....

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