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1 36 ( 1–36) 1 A = {1, 2, 3,...} B = {{1, 2}, {3, 4, 5}, 6, 7, 8,...} A - B 5 B - A 4 (A - B) (B - A) A B 5 1) A 2) A

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Page 1: ข้อสอบ O-net คณิตศาสตร์ 2553

ÃËÑÊÇÔªÒ 04 ¤³ÔµÈÒʵÃì ˹éÒ 2

ÇѹàÊÒÃì·Õ� 20 ¡ØÁÀҾѹ¸ì 2553 àÇÅÒ 11.30 - 13.30 ¹.

Êèǹ·Õ� 1 ẺÃкÒµÑÇàÅ×Í¡ áµèÅТéÍÁդӵͺ·Õ�¶Ù¡µéͧ·Õ�ÊØ´à¾Õ§¤ÓµÍºà´ÕÂÇ ¨Ó¹Ç¹

36 ¢éÍ (¢éÍ 1–36) ¢éÍÅÐ 1 ¤Ðá¹¹

1. ãËé A = {1, 2, 3, . . .} áÅÐ B = {{1, 2}, {3, 4, 5}, 6, 7, 8, . . .} ¢éÍã´à»�¹à·ç¨

1. A−B ÁÕÊÁÒªÔ¡ 5 µÑÇ

2. ¨Ó¹Ç¹ÊÁÒªÔ¡¢Í§à¾ÒàÇÍÃì૵¢Í§ B − A à·èҡѺ 4

3. ¨Ó¹Ç¹ÊÁÒªÔ¡¢Í§ (A−B) ∪ (B − A) à»�¹¨Ó¹Ç¹¤Ùè

4. A ∩B ¤×Í૵¢Í§¨Ó¹Ç¹¹Ñº·Õ�ÁÕ¤èÒÁÒ¡¡ÇèÒ 5

2. ¾Ô¨ÒóҡÒÃãËéà˵ؼŵèÍ仹Õ�

à赯 1) A

2) àËç´à»�¹¾×ªÁÕ´Í¡

¼Å àËç´à»�¹¾×ªªÑ�¹ÊÙ§

¢éÍÊÃØ»¢éÒ§µé¹ÊÁà˵ØÊÁ¼Å ¶éÒ A á·¹¢éͤÇÒÁã´

1. ¾×ªªÑ�¹ÊÙ§·Ø¡ª¹Ô´ÁÕ´Í¡

2. ¾×ªªÑ�¹ÊÙ§ºÒ§ª¹Ô´ÁÕ´Í¡

3. ¾×ªÁÕ´Í¡·Ø¡ª¹Ô´à»�¹¾×ªªÑ�¹ÊÙ§

4. ¾×ªÁÕ´Í¡ºÒ§ª¹Ô´à»�¹¾×ªªÑ�¹ÊÙ§

Page 2: ข้อสอบ O-net คณิตศาสตร์ 2553

ÃËÑÊÇÔªÒ 04 ¤³ÔµÈÒʵÃì ˹éÒ 3

ÇѹàÊÒÃì·Õ� 20 ¡ØÁÀҾѹ¸ì 2553 àÇÅÒ 11.30 - 13.30 ¹.

3. ¾Ô¨ÒóҢéͤÇÒÁµèÍ仹Õ�

¡. ¨Ó¹Ç¹·Õ�à»�¹·È¹ÔÂÁäÁèÃÙ騺ºÒ§¨Ó¹Ç¹à»�¹¨Ó¹Ç¹ÍµÃáÂÐ

¢. ¨Ó¹Ç¹·Õ�à»�¹·È¹ÔÂÁäÁèÃÙ騺ºÒ§¨Ó¹Ç¹à»�¹¨Ó¹Ç¹µÃáÂÐ

¢éÍã´¶Ù¡µéͧ

1. ¢éÍ ¡. áÅТéÍ ¢. 2. ¢éÍ ¡. à·èÒ¹Ñ�¹

3. ¢éÍ ¢. à·èÒ¹Ñ�¹ 4. ¢éÍ ¡. áÅТéÍ ¢. ¼Ô´

4. ¡Ó˹´ãËé s, t, u áÅÐ v à»�¹¨Ó¹Ç¹¨ÃÔ§ «Ö�§ s < t áÅÐ u < v

¾Ô¨ÒóҢéͤÇÒÁµèÍ仹Õ�

¡. s− u < t− v

¢. s− v < t− u

¢éÍã´¶Ù¡µéͧ

1. ¢éÍ ¡. áÅТéÍ ¢. 2. ¢éÍ ¡. à·èÒ¹Ñ�¹

3. ¢éÍ ¢. à·èÒ¹Ñ�¹ 4. ¢éÍ ¡. áÅТéÍ ¢. ¼Ô´

Page 3: ข้อสอบ O-net คณิตศาสตร์ 2553

ÃËÑÊÇÔªÒ 04 ¤³ÔµÈÒʵÃì ˹éÒ 4

ÇѹàÊÒÃì·Õ� 20 ¡ØÁÀҾѹ¸ì 2553 àÇÅÒ 11.30 - 13.30 ¹.

5. ¼Åà©Å¢ͧÊÁ¡Òà 2|5− x| = 1 ÍÂÙè㹪èǧã´

1. (−10,−5) 2. (−6,−4)

3. (−4, 5) 4. (−3, 6)

6. ¶éÒ 3

4à»�¹¼Åà©ÅÂ˹Ö�§¢Í§ÊÁ¡Òà 4x2 + bx− 6 = 0 àÁ×�Í b à»�¹¨Ó¹Ç¹¨ÃÔ§áÅéÇ ÍÕ¡¼Å

à©ÅÂ˹Ö�§¢Í§ÊÁ¡ÒùÕ�ÁÕ¤èҵç¡Ñº¢éÍã´

1. −2 2. −1

2

3. 1

24. 2

7. ¢éÍã´ÁÕ¤èÒµèÒ§¨Ò¡¢éÍÍ×�¹

1. (−1)0 2. (−1)0.2

3. (−1)0.4 4. (−1)0.8

8.(|4√

3− 5√

2| − |3√

5− 5√

2|+ |4√

3− 3√

5|)2 à·èҡѺ¢éÍã´

1. 0 2. 180

3. 192 4. 200

Page 4: ข้อสอบ O-net คณิตศาสตร์ 2553

ÃËÑÊÇÔªÒ 04 ¤³ÔµÈÒʵÃì ˹éÒ 5

ÇѹàÊÒÃì·Õ� 20 ¡ØÁÀҾѹ¸ì 2553 àÇÅÒ 11.30 - 13.30 ¹.

9. ¡Ó˹´ãËé a à»�¹¨Ó¹Ç¹¨ÃÔ§ºÇ¡ áÅÐ n à»�¹¨Ó¹Ç¹¤ÙèºÇ¡

¾Ô¨ÒóҢéͤÇÒÁµèÍ仹Õ�

¡.(

n√

a)n

= |a|

¢. n√

an = |a|

¢éÍã´¶Ù¡µéͧ

1. ¢éÍ ¡. áÅТéÍ ¢. 2. ¢éÍ ¡. à·èÒ¹Ñ�¹

3. ¢éÍ ¢. à·èÒ¹Ñ�¹ 4. ¢éÍ ¡. áÅТéÍ ¢. ¼Ô´

10. ¶éÒ f(x) = −x2 + x + 2 áÅéÇ ¢éÍÊÃػ㴶١µéͧ

1. f(x) ≥ 0 àÁ×�Í −1 ≤ x ≤ 2

2. ¨Ø´Ç¡¡ÅѺ¢Í§¡ÃÒ¿¢Í§¿�§¡ìªÑ¹ f ÍÂÙè㹨µØÀÒ¤·Õ�Êͧ

3. ¿�§¡ìªÑ¹ f ÁÕ¤èÒÊÙ§ÊØ´à·èҡѺ 2

4. ¿�§¡ìªÑ¹ f ÁÕ¤èÒµ�ÓÊØ´à·èҡѺ 2

Page 5: ข้อสอบ O-net คณิตศาสตร์ 2553

ÃËÑÊÇÔªÒ 04 ¤³ÔµÈÒʵÃì ˹éÒ 6

ÇѹàÊÒÃì·Õ� 20 ¡ØÁÀҾѹ¸ì 2553 àÇÅÒ 11.30 - 13.30 ¹.

11. ¤ÇÒÁÊÑÁ¾Ñ¹¸ìã¹¢éÍã´à»�¹¿�§¡ìªÑ¹

1. {(1, 2), (2, 3), (3, 2), (2, 4)}

2. {(1, 2), (2, 3), (3, 1), (3, 3)}

3. {(1, 3), (1, 2), (1, 1), (1, 4)}

4. {(1, 3), (2, 1), (3, 3), (4, 1)}

12. ¶éÒ f(x) =√

3− x áÅÐ g(x) = −2 + |x− 4| áÅéÇ Df ∪Rg ¤×Í¢éÍã´

1. (−∞, 3] 2. [−2,∞)

3. [−2, 3] 4. (−∞,∞)

Page 6: ข้อสอบ O-net คณิตศาสตร์ 2553

ÃËÑÊÇÔªÒ 04 ¤³ÔµÈÒʵÃì ˹éÒ 7

ÇѹàÊÒÃì·Õ� 20 ¡ØÁÀҾѹ¸ì 2553 àÇÅÒ 11.30 - 13.30 ¹.

13. ¡Ó˹´ãËé¡ÃÒ¿¢Í§¿�§¡ìªÑ¹ f à»�¹´Ñ§¹Õ�

����� �

��

¤èҢͧ 11f(−11)− 3f(−3)f(3) ¤×Í¢éÍã´

1. 57 2. 68

3. 75 4. 86

Page 7: ข้อสอบ O-net คณิตศาสตร์ 2553

ÃËÑÊÇÔªÒ 04 ¤³ÔµÈÒʵÃì ˹éÒ 8

ÇѹàÊÒÃì·Õ� 20 ¡ØÁÀҾѹ¸ì 2553 àÇÅÒ 11.30 - 13.30 ¹.

14. ÃÙ»ÊÒÁàËÅÕ�ÂÁÁØÁ©Ò¡Ãٻ˹Ö�§ ÁÕ¾×�¹·Õ� 600 µÒÃҧૹµÔàÁµÃ ¶éÒ´éÒ¹»ÃСͺÁØÁ

©Ò¡´éҹ˹Ö�§ÂÒÇà»�¹ 75% ¢Í§´éÒ¹»ÃСͺÁØÁ©Ò¡ÍÕ¡´éҹ˹Ö�§áÅéÇ àÊé¹ÃͺÃÙ»ÊÒÁ

àËÅÕ�ÂÁÁØÁ©Ò¡ÃÙ»¹Õ� ÂÒÇ¡Õ�ૹµÔàÁµÃ

1. 120 2. 40

3. 60√

2 4. 20√

2

15. ¢ºÇ¹¾ÒàËôÃÙ»ÊÕ�àËÅÕ�ÂÁ¼×¹¼éÒ¢ºÇ¹Ë¹Ö�§»ÃСͺ´éǼÙéà´Ô¹à»�¹á¶Çá¶ÇÅÐà·èÒæ¡Ñ¹

(ÁÒ¡¡ÇèÒ 1 á¶Ç áÅÐá¶ÇÅÐÁÒ¡¡ÇèÒ 1 ¤¹) â´ÂÁÕ੾ÒмÙéÍÂÙèÃÔÁ´éÒ¹¹Í¡·Ñ�§ÊÕ�´éÒ¹¢Í§

¢ºÇ¹à·èÒ¹Ñ�¹ ·Õ�ÊÇÁªØ´ÊÕá´§ «Ö�§ÁÕ·Ñ�§ËÁ´ 50 ¤¹ ¶éÒ x ¤×ͨӹǹá¶Ç¢Í§¢ºÇ¹

¾ÒàËô áÅÐ N ¤×ͨӹǹ¤¹·Õ�ÍÂÙèã¹¢ºÇ¹¾ÒàËôáÅéÇ ¢éÍã´¶Ù¡µéͧ

1. 31x− x2 = N

2. 29x− x2 = N

3. 27x− x2 = N

4. 25x− x2 = N

Page 8: ข้อสอบ O-net คณิตศาสตร์ 2553

ÃËÑÊÇÔªÒ 04 ¤³ÔµÈÒʵÃì ˹éÒ 9

ÇѹàÊÒÃì·Õ� 20 ¡ØÁÀҾѹ¸ì 2553 àÇÅÒ 11.30 - 13.30 ¹.

16. ÃÙ»ÊÕ�àËÅÕ�ÂÁ¼×¹¼éÒÊͧÃÙ» ÁÕ¢¹Ò´à·èҡѹ â´ÂÁÕàÊé¹·á§ÁØÁÂÒÇà»�¹Êͧà·èҢͧ´éÒ¹

¡ÇéÒ§ ¶éÒ¹ÓÃÙ»ÊÕ�àËÅÕ�ÂÁ¼×¹¼éÒ·Ñ�§ÊͧÁÒÇÒ§µè͡ѹ´Ñ§ÃÙ» ¨Ø´ A áÅШش B ÍÂÙèËèÒ§¡Ñ¹à»�¹

ÃÐÂСÕ�à·èҢͧ´éÒ¹¡ÇéÒ§

1. 1.5 2. 3

3.√

2 4. 2√

2

17. â´Â¡ÒÃãªéµÒÃÒ§ËÒÍѵÃÒÊèǹµÃÕ⡳ÁԵԢͧÁØÁ¢¹Ò´µèÒ§æ ·Õ�¡Ó˹´ãËéµèÍ仹Õ�

θ sin θ cos θ

72◦ 0.951 0.309

73◦ 0.956 0.292

74◦ 0.961 0.276

75◦ 0.966 0.259

ÁØÁÀÒÂã¹·Õ�ÁÕ¢¹Ò´àÅç¡·Õ�ÊØ´¢Í§ÃÙ»ÊÒÁàËÅÕ�ÂÁ·Õ�ÁÕ´éÒ¹·Ñ�§ÊÒÁÂÒÇ 7, 24 áÅÐ 25 ˹èÇÂ

ÁÕ¢¹Ò´ã¡Åéà¤Õ§¡Ñº¢éÍã´ÁÒ¡·Õ�ÊØ´

1. 15◦ 2. 16◦

3. 17◦ 4. 18◦

Page 9: ข้อสอบ O-net คณิตศาสตร์ 2553

ÃËÑÊÇÔªÒ 04 ¤³ÔµÈÒʵÃì ˹éÒ 10

ÇѹàÊÒÃì·Õ� 20 ¡ØÁÀҾѹ¸ì 2553 àÇÅÒ 11.30 - 13.30 ¹.

18. ÁØÁÁØÁ˹Ö�§¢Í§ÃÙ»ÊÒÁàËÅÕ�ÂÁÁØÁ©Ò¡ÁÕ¢¹Ò´à·èҡѺ 60 ͧÈÒ ¶éÒàÊé¹ÃͺÃÙ»¢Í§ÃÙ»

ÊÒÁàËÅÕ�ÂÁ¹Õ�ÂÒÇ 3−√

3 ¿ØµáÅéÇ ´éÒ¹·Õ�ÂÒÇà»�¹Íѹ´ÑºÊͧÁÕ¤ÇÒÁÂÒÇà·èҡѺ¢éÍã´

1. 2−√

3 ¿Øµ

2. 2 +√

3 ¿Øµ

3. 2√

3− 3 ¿Øµ

4. 2√

3 + 3 ¿Øµ

19. ¡Åéͧǧ¨Ã»�´«Ö�§¶Ù¡µÔ´µÑ�§ÍÂÙèÊÙ§¨Ò¡¾×�¹¶¹¹ 2 àÁµÃ ÊÒÁÒö¨ÑºÀÒ¾ä´éµ�Ó·Õ�ÊØ´·Õ�ÁØÁ

¡éÁ 45◦ áÅÐÊÙ§·Õ�ÊØ´·Õ�ÁØÁ¡éÁ 30◦ ÃÐÂзҧº¹¾×�¹¶¹¹ã¹á¹Ç¡Åéͧ ·Õ�¡Åéͧ¹Õ�ÊÒÁÒö

¨ÑºÀÒ¾ä´é¤×Íà·èÒã´ (¡Ó˹´ãËé√

3 ≈ 1.73)

1. 1.00 àÁµÃ 2. 1.46 àÁµÃ

3. 2.00 àÁµÃ 4. 3.46 àÁµÃ

20. ¡Ó˹´ãËé 32, 1,

1

2, . . . à»�¹ÅӴѺàÅ¢¤³Ôµ ¼ÅºÇ¡¢Í§¾¨¹ì·Õ� 40 áÅо¨¹ì·Õ� 42 à·èҡѺ

¢éÍã´

1. −18 2. −19

3. −37 4. −38

Page 10: ข้อสอบ O-net คณิตศาสตร์ 2553

ÃËÑÊÇÔªÒ 04 ¤³ÔµÈÒʵÃì ˹éÒ 11

ÇѹàÊÒÃì·Õ� 20 ¡ØÁÀҾѹ¸ì 2553 àÇÅÒ 11.30 - 13.30 ¹.

21. ã¹ 40 ¾¨¹ìáá¢Í§ÅӴѺ an = 3 + (−1)n ÁÕ¡Õ�¾¨¹ì ·Õ�ÁÕ¤èÒà·èҡѺ¾¨¹ì·Õ� 40

1. 10 2. 20

3. 30 4. 40

22. ¡Ó˹´ãËé a1, a2, a3, . . . à»�¹ÅӴѺàâҤ³Ôµ ¶éÒ a2 = 8 áÅÐ a5 = −64 áÅéÇ ¼ÅºÇ¡

¢Í§ 10 ¾¨¹ìáá¢Í§ÅӴѺ¹Õ�à·èҡѺ¢éÍã´

1. 2, 048 2. 1, 512

3. 1, 364 4. 1, 024

23. ·ÒÊÕàËÃÕ­ÊÒÁÍѹ´Ñ§¹Õ� àËÃÕ­áá´éҹ˹Ö�§·ÒÊÕ¢ÒÇ ÍÕ¡´éҹ˹Ö�§·ÒÊÕá´§ àËÃÕ­·Õ�

Êͧ´éҹ˹Ö�§·ÒÊÕá´§ ÍÕ¡´éҹ˹Ö�§·ÒÊÕ¿�Ò àËÃÕ­·Õ�ÊÒÁ´éҹ˹Ö�§·ÒÊÕ¿�Ò ÍÕ¡´éҹ˹Ö�§

·ÒÊÕ¢ÒÇ â¹àËÃÕ­·Ñ�§ÊÒÁ¢Ö�¹¾ÃéÍÁ¡Ñ¹ ¤ÇÒÁ¹èÒ¨Ðà»�¹·Õ�àËÃÕ­¨Ð¢Ö�¹Ë¹éÒµèÒ§Êաѹ

·Ñ�§ËÁ´à»�¹´Ñ§¢éÍã´

1. 1

22. 1

4

3. 1

84. 1

16

Page 11: ข้อสอบ O-net คณิตศาสตร์ 2553

ÃËÑÊÇÔªÒ 04 ¤³ÔµÈÒʵÃì ˹éÒ 12

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24. ¡ÅèͧãºË¹Ö�§ºÃèØÊÅÒ¡ËÁÒÂàÅ¢ 1–10 ËÁÒÂàÅ¢ÅÐ 1 㺠¶éÒÊØèÁËÂÔºÊÅÒ¡¨Ó¹Ç¹Êͧ

㺠â´ÂËÂÔº·ÕÅÐãºáººäÁèãÊè¤×¹ ¤ÇÒÁ¹èÒ¨Ðà»�¹·Õ�¨ÐËÂÔºä´éÊÅÒ¡ËÁÒÂàÅ¢µ�Ó¡ÇèÒ 5

à¾Õ§˹Ö�§ãºà·èÒ¹Ñ�¹ à·èҡѺ¢éÍã´

1. 2

92. 8

15

3. 2

354. 11

156

25. 㹡ÒÃÇÑ´ÊèǹÊÙ§¹Ñ¡àÃÕ¹áµèÅФ¹ã¹ªÑ�¹ ¾ºÇèҹѡàÃÕ¹·Õ�ÊÙ§·Õ�ÊØ´ÊÙ§ 177 ૹµÔàÁµÃ

áÅйѡàÃÕ¹·Õ�àµÕ�·Õ�ÊØ´ÊÙ§ 145 ૹµÔàÁµÃ ¾Ô¨ÒóÒ૵¢Í§ÊèǹÊÙ§µèÍ仹Õ�

S = {H | H à»�¹ÊèǹÊÙ§ã¹Ë¹èÇÂૹµÔàÁµÃ¢Í§¹Ñ¡àÃÕ¹㹪Ñ�¹}

T = {H | 145 ≤ H ≤ 177 }

૵㴶×Íà»�¹»ÃÔÀÙÁÔµÑÇÍÂèÒ§ (á«Áà»�ÅÊ໫) ÊÓËÃѺ¡Ò÷´ÅͧÊØèÁ¹Õ�

1. S áÅÐ T

2. S à·èÒ¹Ñ�¹

3. T à·èÒ¹Ñ�¹

4. ·Ñ�§ S áÅÐ T äÁèà»�¹»ÃÔÀÙÁÔµÑÇÍÂèÒ§

Page 12: ข้อสอบ O-net คณิตศาสตร์ 2553

ÃËÑÊÇÔªÒ 04 ¤³ÔµÈÒʵÃì ˹éÒ 13

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26. 㹡ÒÃàÅ×Í¡¤³Ð¡ÃÃÁ¡Òêش˹Ö�§ «Ö�§»ÃСͺ´éÇ »Ãиҹ Ãͧ»Ãиҹ áÅÐ

àŢҹءÒÃÍÂèÒ§ÅÐ 1 ¤¹ ¨Ò¡Ë­Ô§ 6 ¤¹ áÅЪÒ 4 ¤¹ ¤ÇÒÁ¹èÒ¨Ðà»�¹·Õ�¤³Ð¡ÃÃÁ¡ÒÃ

ªØ´¹Õ� ¨ÐÁÕ»ÃиҹáÅÐÃͧ»Ãиҹà»�¹Ë­Ô§à·èҡѺ¢éÍã´

1. 1

182. 1

12

3. 1

94. 1

3

27. ¤ÃÙÊ͹ÇÔ·ÂÒÈÒʵÃìÁͺËÁÒÂãËé¹Ñ¡àÃÕ¹ 40 ¤¹ ·Óâ¤Ã§§Ò¹µÒÁ¤ÇÒÁʹ㨠ËÅѧ¨Ò¡

µÃǨÃÒ§ҹâ¤Ã§§Ò¹¢Í§·Ø¡¤¹áÅéÇ ¼ÅÊÃØ»à»�¹´Ñ§¹Õ�¼Å¡ÒûÃÐàÁÔ¹ ¨Ó¹Ç¹â¤Ã§§Ò¹

´ÕàÂÕ�ÂÁ 3

´Õ 20

¾Íãªé 12

µéͧá¡éä¢ 5

¢éÍÁÙÅ·Õ�à¡çºÃǺÃÇÁ à¾×�ÍãËéä´é¼ÅÊÃØ»¢éÒ§µé¹à»�¹¢éÍÁÙŪ¹Ô´ã´

1. ¢éÍÁÙÅ»°ÁÀÙÁÔ àªÔ§»ÃÔÁÒ³

2. ¢éÍÁÙŷصÔÂÀÙÁÔ àªÔ§»ÃÔÁÒ³

3. ¢éÍÁÙÅ»°ÁÀÙÁÔ àªÔ§¤Ø³ÀÒ¾

4. ¢éÍÁÙŷصÔÂÀÙÁÔ àªÔ§¤Ø³ÀÒ¾

Page 13: ข้อสอบ O-net คณิตศาสตร์ 2553

ÃËÑÊÇÔªÒ 04 ¤³ÔµÈÒʵÃì ˹éÒ 14

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28. ¤èÒà©ÅÕ�ÂàÅ¢¤³Ôµ¢Í§¹�Ó˹ѡ¢Í§¾¹Ñ¡§Ò¹¢Í§ºÃÔÉѷ˹Ö�§ à·èҡѺ 48.01 ¡ÔâÅ¡ÃÑÁ ºÃÔÉÑ·

¹Õ�ÁÕ¾¹Ñ¡§Ò¹ªÒ 43 ¤¹ áÅо¹Ñ¡§Ò¹Ë­Ô§ 57 ¤¹ ¶éÒ¤èÒà©ÅÕ�ÂàÅ¢¤³Ôµ¢Í§¹�Ó˹ѡ

¾¹Ñ¡§Ò¹Ë­Ô§à·èҡѺ 45 ¡ÔâÅ¡ÃÑÁ áÅéÇ ¹�Ó˹ѡ¢Í§¾¹Ñ¡§Ò¹ªÒ·Ñ�§ËÁ´ÃÇÁ¡Ñ¹à·èҡѺ

¢éÍã´

1. 2, 236 ¡ÔâÅ¡ÃÑÁ

2. 2, 279 ¡ÔâÅ¡ÃÑÁ

3. 2, 322 ¡ÔâÅ¡ÃÑÁ

4. 2, 365 ¡ÔâÅ¡ÃÑÁ

Page 14: ข้อสอบ O-net คณิตศาสตร์ 2553

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29. á¼¹ÀÒ¾µé¹-㺢ͧ¹�Ó˹ѡã¹Ë¹èÇ¡ÃÑÁ¢Í§ä¢èä¡è 10 ¿Í§ à»�¹´Ñ§¹Õ�

5 7 8

6 7 8 9

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