"Misollarni yechishda amallar ketma-ketligini tushuntirish"

O’TILGANLARNI MUSTAHKAMLASH Sondan kasrni topish

4- «A» sinf

16-umumiy o’rta ta’lim maktabi

Boshlang’ich sinf o’qituvchisi

Izzatova Gavhar Raxmatullayevna

Uyga vazifani tekshirish 648-649 misollar.

456 x 26 = 11 856

970 x 82 = 79 540

4 027 x 53 = 213 431

6 580 x 44 = 289 520

320 x 75 : 800 = 30

46 800 : 90 x 48 = 24 960

649-misol. a) uchburchakning perimetrini b) to’g’ri to’rtburchakning yuzini toping.

B

P= 2sm+3sm+4sm = 9 sm

A

C

E

D

C

K

S = 4sm x 1sm = 4 kv.sm

Yangi mavzuning bayoni

650- masala.

• Hamma donlar - 83 kg

• Guruch - 36 kg

• Grechka yormasi - ?, 2 marta kam

• Mosh - ?, qolgani

Yechish:

1)36: 2= 18 kg

2) 36+ 18 = 54 kg

3) 83 - 54 = 29 kg

Javob: 29 kg mosh sarflangan.

651-misol

3

2

1

30815 + 6050 x 20:50 = 33235

121000 50

100 2420

210

200

100

100

0

6050

20

121000

1) 6050 x 20 = 121000

-

x

30815

2420

33235

+

2) 121000 : 50 = 2420

-

3) 30815 + 2420 = 33235

-

4

3

2

1

900 - 700 : (37 + 33) • 6 = 840

37 + 33 = 70

700 : 70= 10

6 • 10 = 60

900 - 60 = 840

652-misol

900 - x • 40 = 660

x : 20 = 4800: 48

x : 20 = 100

x • 40 = 900 - 660

x = 100 • 2

x • 40 = 240

x = 200

x = 240 : 40

x = 6

Tekshirish :

1) 900 - 6 • 40 = 900 - 240 = 660;

660 = 660

2) 200 : 20 = 100

100 = 100

653-masala

• Hamma bug’doy – 60 t.
• Sotildi – qismi
• Qoldi - ? tonna

• Yechish:

60 : 3 = 20 t

20 • 2 = 40 t

60 – 40 = 20 t

Javob: qoldi 20 tonna

DAM OLISH DAQIQASI O’TKAZISH

Yangi mavzuni mustahkamlash

Uyga vazifa

• 654-655 misollar beriladi.
• 654-misolda o’quvchilar misollarni amallar tartibiga ko’ra bajarsalar, 655-misolda bo’lishni bajarib, uni ko’paytirish bilan tekshiradilar.