Математическо състезание

1. ȼȿɅɂɄȾȿɇɋɄɈ ɆȺɌȿɆȺɌɂɑȿɋɄɈ ɋɔɋɌȿɁȺɇɂȿ - 20. 04.2013ɝ.
1 ɤɥɚɫ
ɂɆȿ…………………………………………………………………………………ȼɯ.ʋ…………
ɍɑɂɅɂɓȿ……………………………………………………….…ɝɪ./ɫ……………………
1 ɡɚɞ. Ʉɨɟ ɱɢɫɥɨ ɢɦɚ 1 ɞɟɫ. ɢ 10ɟɞ.
Ⱥ) 10 Ȼ) 11 ȼ) 12 Ƚ) 20
2 ɡɚɞ. 1 + 2 + 3 = ?
Ⱥ) 8 Ȼ) 6 ȼ) 4 Ƚ) 3
3 ɡɚɞ. Ʉɨɥɤɨ ɹɣɰɚ ɢɦɚ ɜ ɤɨɲɧɢɰɚɬɚ?
Ⱥ) 9 Ȼ) 10 ȼ) 12 Ƚ) 11
4 ɡɚɞ. + ; –
4 5 = 15 6
Ⱥ) + ɢ – Ȼ) + ɢ + ȼ) – ɢ + Ƚ) – ɢ –
5 ɡɚɞ. ɋ ɤɨɢ ɱɢɫɥɚ ɳɟ ɩɪɨɞɴɥɠɢɲ ɱɢɫɥɨɜɚɬɚ ɪɟɞɢɰɚ 1, 4, 7, 10, …. , …, …
Ⱥ) 11, 12, 13 Ȼ) 13, 15, 17 ȼ) 13, 16, 19 Ƚ) 12, 15, 18
6ɡɚɞ. ȼ ɤɨɹ ɝɪɭɩɚ ɬɪɢɬɟ ɱɢɫɥɚ ɫɚ ɜɟɪɧɢɬɟ ɨɬɝɨɜɨɪɢ ɧɚ ɡɚɞɚɱɢɬɟ?
8 – 6 = 13 – 5 = 17 – 6 =
Ⱥ) 2, 8, 11 Ȼ) 2, 9, 12 ȼ) 3, 8, 12 Ƚ) 2, 8, 10
7 ɡɚɞ. ȼ ɤɨɹ ɝɪɭɩɚ ɜɫɢɱɤɢ ɫɛɨɪɨɜɟ ɫɚ ɪɚɜɧɢ ɧɚ 11?
Ⱥ) 9 +2; 8 + 2 ; 8 + 3 Ȼ) 5 + 6 ; 2 + 8 ; 3 + 8
ȼ) 6 + 6 ; 8 + 4 ; 7 + 4 Ƚ) 7 + 4 ; 8 + 3 ; 6 + 5
8 ɡɚɞ. Ʉɚɥɢɧɚ ɡɧɚɟ 15 ɫɬɢɯɨɬɜɨɪɟɧɢɹ ɧɚɢɡɭɫɬ, ɚ Ɇɢɥɟɧ – 8. Ʉɨɣ ɡɧɚɟ ɩɨɜɟɱɟ ɫɬɢɯɨɬɜɨɪɟɧɢɹ ɢ ɫ ɤɨɥɤɨ?
Ⱥ) Ʉɚɥɢɧɚ ɡɧɚɟ 23 ɫɬɢɯɨɬɜɨɪɟɧɢɹ ɩɨɜɟɱɟ. Ȼ) Ʉɚɥɢɧɚ ɡɧɚɟ 7 ɫɬɢɯɨɬɜɨɪɟɧɢɹ ɩɨɜɟɱɟ.
ȼ) Ɇɢɥɟɧ ɡɧɚɟ 7 ɫɬɢɯɨɬɜɨɪɟɧɢɹ ɩɨɜɟɱɟ. Ƚ) Ɇɢɥɟɧ ɡɧɚɟ 15 ɫɬɢɯɨɬɜɨɪɟɧɢɹ ɩɨɜɟɱɟ.
9 ɡɚɞ. Ʉɨɹ ɨɬ ɦɚɥɤɢɬɟ ɮɢɝɭɪɢ ɟ ɢɡɜɚɞɟɧɚ ɨɬ ɝɨɥɹɦɚɬɚ ɮɢɝɭɪɚ?
ɚ) ɛ) ɜ) ɝ)
̸ ̙
̭ ̍
̭ ̍
̸ ̙
̙ ̸
̍ ̭
̍ ̭
̙ ̸
̍ ̸
̙ ̭
̚ ̭
̙ ̸
19
̸ ̭
̍ ̙
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ȽȽ) –) ɢ ––
4, 7, 10, …. , …, …10, …. , …
9 ȽȽ) 12,)
ɨɪɢɪ ɧɚɧɚ ɡɚɞɚɱɢɬɟɡɚɞɚɱɢɬɟ?
17 – 6 =17 – 6 =
ȼȼ) 3, 8, 12) 3, 8, 1
ɟ ɫɚ ɪɚɜɧɢɪɚɜɧɢ ɧɚɧ 11?1ɚ
8 + 3 Ȼ)
7 + 47 + 4
ɯɨɬɜɨɪɟɧɢɹɯɨɬɜɨɪɟɧ ɧ
ɟɧɢ
9

2. 10 ɡɚɞ. Ʉɨɥɤɨ ɫɚ ɬɪɢɴɝɴɥɧɢɰɢɬɟ ɧɚ ɮɢɝɭɪɚɬɚ?
Ⱥ) 13 Ȼ) 17 ȼ) 15 Ƚ) 14
11 ɡɚɞ. ȿɦɢɥɢɹ ɤɭɩɢɥɚ ɩɚɧɞɟɥɤɚ. ɂɦɚɥɚ 8 ɤɭɤɥɢ. Ʉɨɥɤɨ ɪɚɡɪɹɡɜɚɧɢɹ ɬɪɹɛɜɚ ɞɚ ɧɚɩɪɚɜɢ, ɡɚ ɞɚ ɨɬɪɟɠɟ
ɩɚɧɞɟɥɤɚɬɚ ɡɚ ɧɟɹ ɢ ɤɭɤɥɢɬɟ ú?
Ⱥ) 10 Ȼ) 9 ȼ) 7 Ƚ) 8
12 ɡɚɞ. ȼ ɤɨɲɧɢɰɚ ɢɦɚɥɨ ɹɣɰɚ. ɉɴɪɜɨ ɜɡɟɥɢ 6 ɨɬ ɬɹɯ, ɚ ɩɨɫɥɟ ɞɨɛɚɜɢɥɢ 2. Ʉɚɤ ɫɟ ɟ ɩɪɨɦɟɧɢɥ ɬɟɯɧɢɹ ɛɪɨɣ
ɢ ɫ ɤɨɥɤɨ?
Ⱥ) ɭɜɟɥɢɱɢɥ ɫɟ ɟ ɫ 2 Ȼ) ɧɚɦɚɥɢɥ ɫɟ ɟ ɫ 4 ȼ) ɧɟ ɫɟ ɟ ɩɪɨɦɟɧɢɥ Ƚ) ɭɜɟɥɢɱɢɥ ɫɟ ɟ ɫ 4
13 ɡɚɞ. 0,2,3,6,8,9. ɇɚɦɟɪɟɬɟ: + –
( 1 + 4 + 7 = 12 )
1 5
4
7
ɚ) 10 ; ɛ) 7 ; ɜ) 4 ; ɝ) 1 .
14 ɡɚɞ. ȿɞɧɚ ɤɧɢɝɚ ɢɦɚ 20 ɫɬɪɚɧɢɰɢ. ɉɟɬɹ ɩɪɨɱɟɥɚ ɧɹɤɨɥɤɨ ɨɬ ɬɹɯ. Ⱥɤɨ ɩɪɨɱɟɬɟ ɨɳɟ 2, ɳɟ ú ɨɫɬɚɧɚɬ 9
ɫɬɪɚɧɢɰɢ. Ʉɨɥɤɨ ɫɬɪɚɧɢɰɢ ú ɨɫɬɚɜɚɬ ɞɚ ɩɪɨɱɟɬɟ?
Ⱥ) ɨɫɬɚɜɚɬ ú 19 ɫɬɪɚɧɢɰɢ Ȼ) ɨɫɬɚɜɚɬ ú 9 ɫɬɪɚɧɢɰɢ
ȼ) ɨɫɬɚɜɚɬ ú 11 ɫɬɪɚɧɢɰɢ Ƚ) ɨɫɬɚɜɚɬ ú 10 ɫɬɪɚɧɢɰɢ
15 ɡɚɞ. ɇɚ ɤɨɣ ɪɟɞ ɡɧɚɰɢɬɟ <, =, > ɫɚ ɩɨɫɬɚɜɟɧɢ ɜɹɪɧɨ?
Ⱥ) 12 ɫɦ < 5 ɫɦ + 7 ɫɦ 16 ɤɝ > 6 ɤɝ + 10 ɤɝ 4 ɥɜ. = 13 ɥɜ. – 8 ɥɜ.
Ȼ) 9 ɫɦ + 7 ɫɦ = 17 ɫɦ 16 ɥɜ. + 6 ɥɜ. < 11 ɥɜ. 16 ɤɝ + 4 ɤɝ > 16 ɤɝ
ȼ) 18 ɫɦ – 5 ɫɦ = 7 ɫɦ + 6 ɫɦ 18 ɤɝ – 7 ɤɝ > 18 ɤɝ – 8 ɤɝ 7 ɥɜ – 4 ɥɜ > 7 ɥɜ + 4 ɥɜ
Ƚ) 1ɫɦ < 15 ɫɦ – 13 ɫɦ 18 ɥɜ = 10 ɥɜ + 8 ɥɜ 12 ɤɝ > 19 ɤɝ – 12 ɤɝ
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