2- sinf. Matematika darsi.

Matematik diktant
52 36 60 81
28 13 47 25
80 49 13 56

Mavzu: Harfli ifodalar

Agar a= 12 bo`lsa, a+8
ifodaning qiymatini toping.

a= bo`lsa,
a +16 ifodaning
qiymatini toping.

Yana nechta mashina ta’mirlanishi kerak?
Yechish:
20+12= ( ta’mirlangan mashina )
43- 32= (ta’mirlanishi kerak bo`lgan mashina)

3- misol

5- misol
Ifodalar tuzinf va ularning
qiymatini toping:
76 va 4, 37 va 53, 28 va 5
sonlarining yig`indisi;
42 va 5, 32 va 15, 38 va 30
sonlarining ayirmasi.

Topshiriq
Agar b=12, b=20
bo`lsa, b+15 ifoda-
ning qiymatini toping.