I  հաջորդ. թիվ

II

III                   =  426    գտիր յուր.

426-6=420

420:3=140

պատ. 140, 142, 144

 

I

II

III Կենտ հաջ. թվերի                    = 225

225-6=219

219:3=73

պատ 73, 75, 77

 

խնդիր 3

I

II          =1240

տարբ-120

1240-120=1120

1120:2=560

560+120=680

 

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