![2 - sinf « Yuz birliklari: Kvadrat santimetr belgilanishi – kv.sm (sm²) »](http://fsd.intolimp.org/html/2020/04/25/i_5ea3d91de4d60/img_phpBCxZW9_2-sinf-uchun-matematika_0.jpg)
2 - sinf
« Yuz birliklari: Kvadrat santimetr belgilanishi – kv.sm (sm²) »
![Matematika darsida biz:](http://fsd.intolimp.org/html/2020/04/25/i_5ea3d91de4d60/img_phpBCxZW9_2-sinf-uchun-matematika_1.jpg)
Matematika darsida biz:
![To‘g‘ri to‘rtburchaklarning yuzlarini ko‘z bilan chamalab, qaysi shaklning yuzi eng katta, qaysi biri eng kichik ekanini ayting:](http://fsd.intolimp.org/html/2020/04/25/i_5ea3d91de4d60/img_phpBCxZW9_2-sinf-uchun-matematika_2.jpg)
To‘g‘ri to‘rtburchaklarning yuzlarini ko‘z bilan chamalab, qaysi shaklning yuzi eng katta, qaysi biri eng kichik ekanini ayting:
![Tomonlari bir santimetrdan bo‘lgan kvadratning yuzi bir kvadrat santimetrga teng bo‘ladi. «Kvadrat santimetr» so‘zi sonlar yoniga qisqacha 1 kv. sm, 5 kv. sm deb yoziladi.](http://fsd.intolimp.org/html/2020/04/25/i_5ea3d91de4d60/img_phpBCxZW9_2-sinf-uchun-matematika_3.jpg)
Tomonlari bir santimetrdan bo‘lgan kvadratning yuzi bir kvadrat santimetrga teng bo‘ladi. «Kvadrat santimetr» so‘zi sonlar yoniga qisqacha 1 kv. sm, 5 kv. sm deb yoziladi.
![2-masala. 49 kg meva bor edi. Murabbo tayyorlash uchun 20 kg, sharbat tayyorlash uchun 19 kg meva ishlatildi. Necha kilogramm meva ortib qoldi? Yechish: 49-(20+19)=49-39=10](http://fsd.intolimp.org/html/2020/04/25/i_5ea3d91de4d60/img_phpBCxZW9_2-sinf-uchun-matematika_4.jpg)
2-masala.
49 kg meva bor edi. Murabbo tayyorlash uchun 20 kg, sharbat tayyorlash uchun 19 kg meva ishlatildi. Necha kilogramm meva ortib qoldi?
Yechish:
49-(20+19)=49-39=10
![3-misol 35 : 5•2 = 7•2=14 4•9 + 14 = 36+14=50 18 : 2 – 9 = 9-9=0 20 : 4•5 = 5•5=25 3•8 – 24 = 24-24=0 16 : 4 + 6 = 4+6=10](http://fsd.intolimp.org/html/2020/04/25/i_5ea3d91de4d60/img_phpBCxZW9_2-sinf-uchun-matematika_5.jpg)
3-misol
35 : 5•2 = 7•2=14
4•9 + 14 = 36+14=50
18 : 2 – 9 = 9-9=0
20 : 4•5 = 5•5=25
3•8 – 24 = 24-24=0
16 : 4 + 6 = 4+6=10
![4-topshiriq Har qaysi shaklda nechta kvadrat santimetr borligini sanab ayting: 4 kv.sm 4 kv. sm 6 kv.sm](http://fsd.intolimp.org/html/2020/04/25/i_5ea3d91de4d60/img_phpBCxZW9_2-sinf-uchun-matematika_6.jpg)
4-topshiriq
Har qaysi shaklda nechta kvadrat santimetr borligini sanab ayting:
4 kv.sm 4 kv. sm 6 kv.sm
![Dam olish daqiqasi “ Kelajakda kim bo`lmoqchisiz?” “ Men kimman?”](http://fsd.intolimp.org/html/2020/04/25/i_5ea3d91de4d60/img_phpBCxZW9_2-sinf-uchun-matematika_7.jpg)
Dam olish daqiqasi
“ Kelajakda kim bo`lmoqchisiz?”
“ Men kimman?”
![1 56-bet 5-6-misol va masala](http://fsd.intolimp.org/html/2020/04/25/i_5ea3d91de4d60/img_phpBCxZW9_2-sinf-uchun-matematika_8.jpg)
1 56-bet
5-6-misol va masala
![5-masala. Bu yil shaharda 54 ta yangi uy qurilishi kerak edi. Uylarning oltidan bir qismi Navro`z bayramiga qurib bitkazildi. Navro`z bayramiga nechta uy qurib bitkazilgan? Yechish: 54:6=9 Javob: 9 ta uy qurib bitkazilgan 6-misol. 40+6●5=40+30=70 30+6●7=30+42=72 60-6●8=60-48=12 48:6+12=8+12=20 80-6●9=80-54=26 54:6+21=9+21=30](http://fsd.intolimp.org/html/2020/04/25/i_5ea3d91de4d60/img_phpBCxZW9_2-sinf-uchun-matematika_9.jpg)
5-masala.
Bu yil shaharda 54 ta yangi uy qurilishi kerak edi. Uylarning oltidan bir qismi Navro`z bayramiga qurib bitkazildi. Navro`z bayramiga nechta uy qurib bitkazilgan?
Yechish: 54:6=9 Javob: 9 ta uy qurib bitkazilgan
6-misol.
40+6●5=40+30=70 30+6●7=30+42=72
60-6●8=60-48=12 48:6+12=8+12=20
80-6●9=80-54=26 54:6+21=9+21=30
![Tuzuvchi: Namangan viloyati Pop tuman 10-IDUM ning boshlang`ich sinf o`qituvchisi Djumayeva Adiba Ilhomjonovna](http://fsd.intolimp.org/html/2020/04/25/i_5ea3d91de4d60/img_phpBCxZW9_2-sinf-uchun-matematika_10.jpg)
Tuzuvchi:
Namangan viloyati Pop tuman
10-IDUM ning boshlang`ich sinf o`qituvchisi
Djumayeva Adiba Ilhomjonovna