Matematika sinf. Test savollari. Iii-chorak II- variant. Tog`ri to`rtburchakning eni sm ga teng, bo`yi undan sm ga ortiq bo`lsa, uning perimetrini toping

12. Hisoblang: 21,3 · 27 – 2 · 21,3 + 28,7 · 53 – 28 · 28,7. A) 1300 B) 1330 C) 1250 D) 1800
13. Ko`paytuvchilarga ajrating: a² + ab -5a – 5b. A) (a+b)(a-5) B) (b-5)(a+2) C) (b+a)(b+2) D)(a-3b)(a-5)
14. Tenglamani yeching: (2x+3)² - 4(x-1)(x+1)=49 A) 4 B) 3 C) -3 D) -4
15. Ko`paytuvchilarga ajrating: 25a² - 4b² + 10a + 4b.
A) (5a-2b)(5a +2b + 2) B) (5a + 2b)(5a – 2b + 2) C) (5a-2b)(5a-2b -2) D) (5a+2b)(5a+2b -2)
16. Ko`paytuvchilarga ajrating: 8a³-2ab²
A) 2a(2a-b)² B) 2a(2a+b)(2a-3b) C) 2a(2a-b)(2a+b) D) (2a-b)(4a²+ab+b²)
17 . Amallarni bajaring: ( ) : ( 2a + 3b). A) B) 6ab C) 1 D) 2a + 3b
18. Kasrlarni ko`paytiring: A) 15 B) C) D) .
19. Kasrlarni ko`paytiring: . A) B) C) D)


20. Amallarni bajaring: A) B) 0 C) D)
21. Hisoblang: A) 2 B) C) 8 D)
22. Kasrlarni bo`ling: : . A) B) C) D)
23. Kasrlarni ko`paytiring: . A) B) C) D)
24. Uzunliklari 3 sm, 4 sm , 5 sm, 7 sm bo`lgan kesmalardan nechta uchburchak yasash mumkin ?
A) 5 B) 2 C) 3 D) 4
25. Quyidagi mulohazalardan qaysi biri noto`g`ri ? A) Uchburchakda katta burchak qarshisida katta tomon yotadi. B) Uchburchakda katta tomon qarshisida katta burchak yotadi . C) Uchburchakda kichik burchak qarshisida kichik tomon yotadi D) Uchburchakda kichik burchak qarshisida katta tomon yotadi.


Matematika. 7 sinf. Test savollari. III-chorak I - variant.
1. To`rtburchak barcha burchaklari yig`indisi nech gradusga teng ? A) 180⁰ B) 270⁰ C) 360⁰ D) 540⁰