1. Poyezd 180 km masofani soatu 30 minutda o’tadi. Uining tezligini toping

( o’rta vaznli qiymat) Mayiz 1000 so’mdan 4 kg, konfet 200 so’mdan 8 kg, gruch 500 so’mdan 8 kg sotib olindi. Bu maxsulotlar aralashmasining 1kgi qancha ?
107. Temperaturasi 50⁰ bo’lgan 9 litr suvga , temperaturasi 20⁰ bo’lgan 16 litr suv qo’shildi. Aralashtirilgan suv temperaturasini toping?
108. Poezd A sahardan B saharga 60km\soat tezlik bilan yurgan. B dan A ga qaytishda u soatiga 40 km\soat tezlik bilan yurdi. Poezd borish va qaytishdagi jami yo’lni qanday o’rtacha tezlik bilan yurgan?





№19

109. Motosikilchining tezligi 72 km \soat, velosipedchiniki esa 18km\soat. Motosikilchi o’zidan 43,2 km oldindagi velosiprdchini quvub ketmoqda. Qancha vaqtdan so’ng motosikilchi veloiprdchini quvib etadi?

110. 5 kg konfet 12000 so’m, 8 kg konfet necha so’m turadi?
111. Katerning turg’un suvdagi tezligi 18,5 km/soat . daryo oqimining tezligi 2,8 km-soat gat eng. Katerning daryo oqimi bo’yicha tezligini toping.
112. Bir ishchi 1 minutda 182 ta 2- ishchi 20 ta detal tayorlaydi. Ikkala ishchi bir sutkada nechta detal tayorlaydi





№20

113. 324 sonini 3:7:8 sonlatga to’g’ri proporsional nisbatda bo’ling.

114. Poyezda 936 ta yo’lovchi bor. , kattalar bolalardan 11 marta ko’p. kattalar va bolalar qancha?
115. mashina 2,5 soat 40km-soat tezlik bilan yurdi. U yo’ni 1,5 soatda yurish uchun necha km / soat

tezlikda yurishi kerak.

116. Bir-biriga qarab kelayotgan ikki delfin orasidagi masofa 33km. Agar delfinlardan birining tezligi ikkinchisidan 10 km/soat ortiq va tezliklarini nisbati 5:6 nisbatda bo’lsa , ular qancha vaqtda uchrashadi.

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№9

1. 
   Hisoblang: 40*187*25
   
2. 
   Tenglamani yeching: 7x+70=12*7
   
3. 
   Yig’indini hisoblang:
   

1+3+5+7+…+17+19

4. Hisoblang: 5920:37-2898:46

№10

1. 
   Bolishni bajaring: a) 69223:341=
   

b) 26196:37=

2. Bo’lishni tekshiring: 87550:425=206

3. TenglamanI yeching: 7x+6x+1000=1975

4. Bo’ling: 1311254:409=

№11

1. Tenglamalarni yeching:

1. 
   (290*X) : 58=15750:105
   
2. 
   81900: (1324-X)=350
   

2. Hisoblang: a) 35:7+39*5

b) 4758: (313-252)+222

3. To’g’ri to’rtburchak yuzi 36 sm² va bir tomoni 4 sm bo’lsa uning perimetrini toping?

№12

1. 
   Ifodani qiymatini toping: a=1000 bo’lsa
   

3156- (a-879) =

2. Hisoblang: a) a)643111897+43769111=

b) 10100110001+101101110=

d) 146900+ (146900+378000) =

№13

1. 
   Ifodani qiymatini toping: a=245 bo’lsa 3756- ( a-879) =
   
2. 
   Hisoblang: 170055679+1567889412=
   
3. 
   73340126+822457819=
   

№14

1. 
   Ifodani qiymating toping: a=5452 bo’lsa 8156- ( a-879)
   
2. 
   Hisoblang:a) 98765- (404 -404)
   

b) 1092896:574+5218*39-9306=

d) 614*905+2736:76=

3. 1m³ = … sm³

№15

1. 
   Hisoblang:
   
2. 
   a) 362600:37-9720:24+225=
   

b) 463320:198*52=

3. Tenglamani yeching:

a) 5x+8x+2x+44 = 149

4. 6 dm² = …sm²

№16

1. Hisoblang:

a) 1092896:574=

b) 521*39=

d) 2736:76=

e) 614*905=

2. 3m 12 sm = … mm
ёёёёёёёi yecn


Lang7