O`ylangan sondan 15 ni ayirsa 30 qoladi. Qanday son o`ylangan? A 55 b 45 d 35


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2-sinf matematika olimpiada



2-sinf matematika
1) Qo’chqorning og`irligi 35 kg, Buzoqning og`irligi ham shuncha. Buzoqning og`irligini toping?
A) 40 kg B) 35 kg D) 45 kg
2) O`ylangan sondan 15 ni ayirsa 30 qoladi. Qanday son o`ylangan?
A) 55 B) 45 D) 35
3) Ifodaning qiymatini toping? 50-(35+5)=
A) 30 B) 10 D) 15
4 ) 3 kg paxta o`g`irmi, 3 kg toshmi?
A) Paxta B) Tosh D) Ikkalasi teng
5) Qovunning og`irligi 3 kg, karamning og`irligi ham shuncha. Ikkisining og`irligini toping.
A) 3 kg B) 6 kg D) 9 kg
6 ) Javobida 65 chiqadigan misolni belgilang:
a) 65 - 5 d) 100 – 45 b) 50 + 15
7) 33 dan 7 ta kam boʼlgan sonni toping.
A) 24 B) 22 D) 26
8) Osma soat 18 ta, qoʼl soat 9 ta kam. Qoʻl soat nechta?
A) 9 ta B) 18ta D) 16 ta
9) Birinchi egatdan 40 kg , ikkinchisidan 2 kg ko’p kartoshka terildi. Ikkala egatdan qancha kartoshka terilgan?
A) 42 kg B) 82 kg D) 80 kg
10) Bo`yi 8 cm va eni 12 cm bo`lgan tog`ri to`rtburchakning peremetrini toping?
A) 40 cm B) 42 cm D) 24 cm
11)

Jami hayvonlar nechta?
A) 64 ta B) 74 ta D)54 ta
12) Taqqoslang. 45+37 50+10
A)> B)< D)=
13) 3+3+3+3+3+3+3+3+3= ko`paytirish amalida ifodalang
a) 9•3= b) 9•7= d) 9•6=
14) Taqqoslang 2•9 2•8
A) = B)> D) <
15) Bo`sh quti 3 kg. Uning ichida 12 kg olma bor. Quti bilan birga olma massasini toping.
A 15 kg B) 13 kg D) 19 kg
16) O `rdaklarni to`rtta guruhga ajratsak, nechtadan guruh hosil bo`ladi?

A 6 ta B) 8 ta D) 4 ta


17) Hisoblang. 12: 2=
A)6 B) 3 D) 2
18) 18 ta tugmani nechta kiyimga 3 tadan qadash mumkin?
A) 6 ta B ) 3 ta D) 7 ta
19) O `rmonchilar 80 ta ko`chatni 8 ta qatorga ekishgan bo`lsa , har bir qatorga nechtadan daraxt ekilgan ?
A) 11 qator B) 10 qator D) 8 qator
20) Qaysi ko`pburchak tushirib qoldirilgan?

A) 6 burchak B) 6 burchak D) 9 burchak
21) Tenglamani javobini toping. X-29=15
A) 44 B) 45 D) 14
22) Noma`lumni topamiz
A) 42 B) 76 D) 62
23) Tenglamani javobini toping. X•3=36
A) 102 B) 39 D) 12
24) Bo`linmani topamiz. 36:4=
A) 9 B) 8 D) 7
25) Birinchi qo`shiluvchi 34 ga, yig`indi 51 ga teng bo`lsa, ikkinchi qo`shiluvchini toping.
A) 15 B) 17 D) 16
Yozma ish savollari

  1. Hisoblang



  1. 32+9•(19-16)=

  2. 5•9-(18:6)=

  3. 30:6•5=

  4. 24:6-4=



  1. Tenglami yeching

44-x=21 x-18=50




  1. Peremetrini toping


7 cm
19 cm



  1. Sonlar ketma-ketligini davom ettiring

3, 6, 9,12,


2, 5, 8, 11,
7. 14, 21, 28,


  1. Masalani yeching

Davlatbek , Dilnoza, Davronbek jami 27 olma terishdi. Dilnoza Davlatbekdan 3 ta kam, Davronbekdan esa 3 ta ko`p olma tergan bo`lsa, Dilnoza nechta olma tergan?



26) To`rttala tomoni teng bo`lgan tortburchak nima deyiladi?


27) Eng kichik uch xonali son qaysi?
28) 90 sonidan oldin va keyin keladigan sonlarni belgilang?
29) 5+5+5+5 ko`rinishidagi misolni ko`paytma shaklida yozing
30) Fazoviy shakllardan uchtasini nomini yozing?



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