Algebra vii-sinf. I-chorak test. A-variant

Algebra VII-sinf.I-chorak testi.D-variant

1. 
   82,* soni 4 ga qoldiqsiz bolinishi uchun * o'rnida qaysi rasqam bo'lishi mumkin? #1 0 va 4#2 12 va 16#3 4 va 8#4 24 va 8#5 0 va 8
   
2. 
   0,561 va 0,539 sonlari ayirmasi ularning yig'indisini qanday qismini tashkil etadi? #1 0,02#2 0,2#3 50#4 5#5 0,11
   

3. 6,18; 12,3; 3,12 sonlari o'rta arifmetigini toping. #1 2,7#2 7,8#3 26,1#4 7,2#5 8,7

4.Prosent nima? #1 0,9#2 0,0001#3 0,001#4 0,1#5 0,01

5. 0,075 ning prosent qiymatini toping. #1 7,5%#2 0,75%#3 75%#4 750%#5 0,57%

6. Hisoblang: 16,78-(1,45+5,4) #1 5,67 #2 0,876 #3 56,87 #4 9,93 #5 9,92

7. 
   a=5,1, b=4,7 bo’lsa, P=2(a+b) ifodaning son qiymatini toping. #1 196 #2 19,6 #3 1,96 #4 18,16 #5 18,14
   
8. 
   Ona farzandlari uchun a so’mdan 8 ta rasm daftar, b so’mdan 5 ta ruchka, c so’mdan 20 ta daftar sotib oldi. Jami xaridni xisoblash uchun ifoda tuzing,
   

#1 33(a+b+c) #2 8a+25(b+c) #3 800abc #4 8a+100ba #5 8a+5b+20c

7. 
   Ifodaning son qiymatini toping: 3 #1 3,788 #2 6,2 #3 -6,2 #4 -67 #5 9,3
   
8. 
   Uchburchak bir tomonining uzunligi a ga teng bo’lib, u ikkinchi tomonidan 2 sm qisqa, uchinchi tomonidan esa 3sm uzun. Shu uchburchakning perimetrini hisoblash uchun ifoda tuzing.
   

#1 3a-1 #2 3a-5 #3 3a+5 #4 1-3a #5 3a+2

7. 
   Noma’lumning tenglamani to’g’ri tenglikka aylantiradigan qiymati nima deyiladi?
   

#1 Tenglamani qiymati #2 Tenglamani yechish #3 Tenglamani ildizi #4 Tenglamani o’ng qismi #5 Tenglamani chap qismi

7. 
   ^{tenglamaning ildizi x}0 ^{bo’lsa,18:x}0 ^{ifodani hisoblang:}
   

#1 6 #2 7 #3 -7 #4 46 #5

7. 
   Uchta javonda hammasi bo’lib 385 ta kitob bor. 1-javonda 2-siga qaraganda 8 ta ko’p, ammo 3- javondagidan 9 ta kam kitob bor. Har bir javonda nechtadan kitob bor?
   

#1 128;120;137 #2 127;119;139 #3 127;122;136 #4 126;134;125 #5 130;117;138

7. 
   Usta buyurtmani 8 kunda bajarishi kerak edi. U har kuni rejadan tashqari 6 ta mahsulot tayyorlab, buyurtmani 5 kunda bajaribgina qolmasdan, balki ortiqcha yana 12 ta mahsulot tayyorladi. Usta reja bo’yicha bir kunda nechta mahsulot tayyorlashi kerak edi?
   

#1 8 #2 4 #3 5 #4 7 #5 6

7. 
   Tenglamani yeching. 8(x+2)-6=7-(5-8x) #1 -2 #2 0,5 #3 1,6 #4 Ildizga ega emas #5
   

16. Tenglamani yeching. 4(x+2)(x-3)=(2x-3)(2x+4)-18 #1 3 #2 -2 #3 1 #4 -1 #5

17. 
    Tenglamani yeching.10:6=x:4 #1 3 #2 8 #3 6 #4 #5 TJY
    
18. 
    Tenglamani yeching. #1 3 #2 8 #3 6 #4 #5 TJY
    
19. 
    Tenglamani yeching. 90-x+
    
20. 
    Tenglamani yeching.x+56=96
    
21. 
    Tenglamani yeching. 2x-7=15
    
22. 
    Dinora bir son o’yladi.Undan 3 ni ayirib, natijani 4 ga bo’ldi. Bo’linmaga 7 ni qo’shdi. Hosil bo’lgan yig’indini 5 ga ko’paytirgan edi, 50 chiqdi. Dinora qanday sonni o’ylagan?
    
23. 
    Ikkita omborda 120 t kartoshka bor. Birinchi ombordagi kartoshkaning 20 % I ikkinchi ombordagi kartoshkaning 10 % idan 3 t ko’p. Ikkinchi ombordagi kartoshkadan birinchi ombordagi kartoshka qancha kam?
    
24. 
    Kattasi m bo’lgan ikkita ketma-ket sonlar ko’paytmasini yozing. 25.V=abc formuladan a ni topish formulasini yozing.