. Sonlarni qo‘shing: \(\left( { - 71} \right)\; + \;9\; + \;\left( { - 29} \right);\)

Harfiy ifodaning qiymatini toping. D – 109, bunda d = 139;

Buva va otasining yoshlari yig‘indisi \(111\) yilga teng. Agar ota buva yoshidan ikki marta kichik bo‘lsa, har birining yoshi nechada ?

. To‘g‘ri burchali uchburchakning katetlari 24 va 10 ga teng bo‘lsa uning gipetenuzasini toping.

. Proporsiyaning o‘rta hadlari 63 va 54 ga teng. Chetki hadlaridan biri 35ga teng. Proporsiyaning ikkinchi chetki hadini toping.

. Ifodani soddalashtiring: \(88 - \left( {69 + x} \right)\)

. To‘liqsiz bo‘linma 21ga , bo‘luvchi 89 ga , qoldiq 13 ga teng bo‘lsa, bo‘linuvchini toping.

To‘gri to‘rtburchakning bo‘yi 27,2 sm, eni undan 8 marta kichik bo‘lsa, to‘g‘ri to‘rtburchakning perimetrini toping (sm).

Ikki piyoda bir biriga qarab harakatlanishmoqda. Ulardan birining tezligi \(3,2\) km/soat, ikkinchisining tezligi \(3,6\) km/soat. Hozir ular orasidagi masofa \(14\) km bo‘lsa, \(2\) soatdan keyin ular orasidagi masofa qancha bo‘ladi(km)?

Tenglamani yechimini toping:

\(\frac{3}{4} = \frac{{15}}{{x + 7}}\)

. Tenglamani yeching:

\((\frac{5}{8}y - 2\frac{3}{4})*8 = 3;\)

Taqqoslang: \(a\; = \;0,675\), \(b = \frac{{16}}{{25}}\), \(c = \frac{{11}}{{16}}\)

. Hisoblang:

\(131\frac{4}{{11}}*89 - 31\frac{4}{{11}}*89;\)

Sonlarni yig‘indisi toping. 112, 85, 2333;

2 ta birlik, 3 ta o‘nlik, 7 ta yuzdan birlar, 5 ta o‘ndan birlar, 6 ta mingdan birlardan iborat sonni yozing.

Tub ko‘paytuvchilarga ajrating.

Noto‘g‘ri kasrni aralash songa aylantiring: \(\frac{{77}}{{14}}\);

Bo‘yi va eni 6 smdan , balandligi esa 3 sm bo‘lgan to‘g‘ri burchakli parallelepiped sirtining yuzini va qirralari yig‘indisini toping.

Soddalashtiring: \(5b - \left( {6b + a} \right) - \left( {a - 6b} \right)\)

300 tonna yoqilg‘i tayyorlab qo‘yilgan.Yanvar oyida yoqilg‘ining 13,5% i, fevral oyida esa 19,5% i ishlatildi. Fevral oyida yanvar oyidagiga qaraganda necha tonna ko‘p yoqilg‘i ishlatilgan?

n ning shunday uchta qiymatini topingki, \(\frac{n}{{23}}\) notog‘ri kasr \(\frac{{26}}{{23}}\) kasrdan kichik bo‘lsin.

Birinchi bankada \(\frac{{21}}{{25}}\) kg murabbo, ikkinchi bankada esa \(\frac{{17}}{{20}}\) kg murabbo bor. Qaysi bankada murabbo ko‘proq?

HIsoblang : \({7^2}\; + \;{5^2}\)

85 km masofa 1:1000000 masshtabli xaritada qanday uzunlikdagi kesma bo‘ladi?

Daraja ko‘rinishida yozing : 8 * 8 * 8 * 8 * 8 * 8 * 8 =

Tenglamani yeching: \(8x + 5 = 119 + \left( {7 - 3x} \right)\)

Amudaryoning uzunligi 2540 km . Sirdaryo unga qaraganda 479 km uzun. Sirdaryoning uzunligini toping.

To‘g‘ri to‘rtburchak tomonlari: 8 m va 2,66 m bo‘lsa, uning yuzini toping?

. Ayirmani toping:

30\(\frac{7}{{12}}\)- 10\(\frac{6}{{12}}\);

\(-\left( { - \left( { - 5\frac{1}{2}} \right)} \right)\)

) soniga qarama-qarshi sonni toping