4-sinf O’qish Davlatimiz o’z mustaqilligiga qachon erishdi?

V. To’rt arifmetik amal va ularning bajarilishi.
43. Faqat qo’shish va ayirish amallari bo’lgan misollarda amallar tartibi qanday bajariladi?
a) amallar tartibi o’ngdan chapga qarab bajariladi
b) amallar tartibi chapdan o’nga qarab bajariladi
s) birinchi qo’shish amali bajariladi
d) birinchi ayirish amali bajariladi
44. 3 dm necha sm ga teng?
a) 3 sm b) 20 sm
s) 10 sm d) 30 sm
45. 24 metr matodan 6 ta bir xil ko’ylak tikildi. 44 metr matodan nechta ko’ylak tikish mumkin?
a) 11 ta b) 9 ta
s) 10 ta d) 8 ta
46. Qavsli ifodalarda amallar tartibi qanday bajariladi?
a) qavs oldidagi amal birinchi bajariladi
b) qavsdan keyingi amal birinchi bajariladi
s) birinchi qavs ichidagi amal, songra boshqa amallar bajariladi
d) qo’shish amali bajariladi
47. Amallarni bajaring: 24÷(8+4)×2=
a) 2 b) 3
s) 5 d) 4
48. 20 bilan 3 sonlarining bo’linmasidan qoladigan qoldiq sonni toping.
a) 20÷3=6 (2q) b) 20÷3=6(4q)
s) 20÷3=6 (6q) d) 20÷3=6 (4q)
49. Bir sentner necha kilogrammga teng?
a) 1000 kg b) 100 kg
s) 10 kg d) 1 kg
50.

Bor edi	Ishlatildi:	Qoldi:
90 kg sabzi	1-20 kg 2-15 kg	-?kg

Masalaning javobi to’g’ri berilgan qatorni belgilang.

1. 
   55 kg b) 65 kg
   

s) 45 kg d) 25 kg
51. Birinchi ko’paytuvchi 212, ikkinchi ko’paytuvchi 8, ko’paytmani toping.
a) 1596 b) 1496
s) 1696 d) 1396
52. 428 28=456 amalishoralarini tenglik to’g’ri bo’ladigan qilib qo’ying.
a) / b) +
s) * d) –