45-dars 5-sinf Sana: 20 y

Tashkiliy qism:

1. 
   Salomlashish
   
2. 
   Navbatchi axborotini tinglash
   
3. 
   O’tilgan mavzular yuzasidan savol-javob o’tkazish
   
4. 
   Uy vazifalarini tekshirish
   

Asosiy qism:
1-qoida: Agar ifodada qavslar bo’lmasdan, faqat bitta bosqich amallari qatnashsa, amallar chapdan o’ngga qarab yozilish tartibida ketma-ket bajariladi.
762-413+381-256=349+381-256=730-256=474
2-qoida: Agar ifodada qavslar bo’lmasdan, har ikkala bosqich amallari ham qatnashsa, oldin II bosqich amallari, so’ngra I bosqich amallari bajariladi.
239-24:8+32∙7=239-3+224=236+224=460
3-qoida: Agar ifodada qavslar qatnashgan bo’lsa, oldin qavslar ichidagi amallar, so’ng boshqa amallar 1- va 2-qoidalarga ko’ra bajariladi.
(1216+16∙9):4-1440:12=(1216+144):4-1440:12=1360:4-1440:12=340-120=220
1-misol.
a) 78-45+54-49=33+5=38 b) 231+112-223-109=343-223-109=11
d) 721:7-112:8+37∙22=903 e) 322:23∙22-483∙9:23=119
f) 315:(375-24∙15)+98=119 g) (24∙7-676:13)∙13-238=1270


Mustahkamlash:
2-misol.
a) (56-56):342+(289-288)∙122=122 b) (56+46)∙23+(444-443)∙34=2334

3-misol.

a) 48-29+37-19=19+18=37 b) 156+228-193-66=125
d) 245:7-224:16+35∙11=406 e) 322:23∙70-161∙9:69=959
f) 315:(162+12∙24-11∙39)+5581=5596 g) (24∙7-377:29)∙(2378:58-38)=465
h) (120+16∙7)∙240:(300-5∙44)=696 i) (372+118∙6):(38∙35-34∙37)=15
4-misol.
a) 348+37+63=448 b) 54∙4∙25=5400 d) 378+89-78=389
e) 51∙8+49∙8=800 f) 427-73-27=327 g) 125∙65-25∙65=6500
6-misol.
a) 24∙11+96:3=296 b) 510-(236+128)=146
d) (27+3)∙(52-22)=900 e) (31+29):30=2
Baholash:
Uyga vazifa: 393-395-misol.


O`IBDO`: ______________ G.Xo’jayeva


51-dars 5-sinf Sana: __ __ 20__y.