Amallar tartibini aniqlang va ifodaning qiymatini toping a 56 – · + 58= b 591 + · – 84= d 355 + · – 75= e 60 · + · – 315= f · + 437 – 208= g 60 · + 597 – 321= 2


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3-inf matematika


1.Amallar tartibini aniqlang va ifodaning qiymatini toping.
a) 56 – 4 · 9 + 458=
b) 591 + 5 · 7 – 384=
d) 355 + 6 · 8 – 275=
e) 60 · 5 + 3 · 5 – 315=
f) 8 · 9 + 437 – 208=
g) 60 · 4 + 597 – 321=
2.Xona birliklari jadvalidan foydalanib, bo‘sh joylarni to‘ldiring:
a) 3781 > 3_81 b) 3890 < _389 d) 1123 > _023
e) 7462 < 74 _2 f) 2691 = 2_91 g) 3624 > 3_24
3.Masalani yechish.
Gulnora va Elyorbek buvijonlarining tug‘ilgan kuniga 72 ta keks pishirib,
dasturxonga 4 ta laganchada qo‘yishmoqchi. Ular bitta laganchaga
nechtadan keks solishi kerak?
4.Masalani yeching.
Dehqon birinchi yili olma daraxtidan 120 kg hosil yig‘ib oldi. Ikkinchi
yili olma daraxti birinchi yildagidan 50 kg ko‘p hosil berdi. Ikki yilda
dehqon jami qancha hosil yig‘ib olgan?
5.Masalani yeching.
5 Nodira birinchi kuni 6 ta sahifa, ikkinchi kuni birinchi kunga qaraganda
2 marta ko‘p sahifa kitob o‘qidi. Uchinchi kuni esa ikkinchi kunga
qaraganda 3 marta ko‘proq sahifa kitob o‘qidi.
Nodira uchinchi kuni necha sahifa kitob o‘qigan?
6.a)432:24+1= d)60·2+60=
b)500:10+2= e)437-135·1=
c)25·5-25= f)501-401·5=
7.Uchburchakning tomonlari 5sm,3sm va 4 sm bo’lsa perimetrini toping?
8. To’rtburchkning tomonlari 2sm,3sm ,3sm va 4 sm bo’lsa perimetrini toping?
9. Amallarni bajaring:
a) 152 · 2 + 3 · 130= b) 4 · 128 – 37 · 3=
d) 3 · 127 – 2 · 102 = e) 124 · 4 – 2 · 158=
10.Ko‘paytirishni bajaring:
a) 174 · 4= b) 218 · 4= d) 5 · 120=
e) 5 · 235 = f) 3 · 428= g) 7 · 121=





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