Question

1.Descompune deimpartitul in suma de zeci si unitati ,apoi efectueaza impartirile
a) 55 : 5
39 :3

b) 66 : 6 ;
33 :3 ;

c) 22 : 2 ;
28 : 2;


2. Ana are 24 de margele rosii si 27de margele albe .Ea a facut coliere in care a pus cate 8 margele rosii si 9 margele albe,Cate coliere a facut Ana? Plan de rezolvare

Answer 1

1.
55/5 ⇔(50+5)/5 = 11
39/3 ⇔ (30+9)/3=13
66/6 ⇔ (60+6)/6=11
33/3 ⇔ (30+3)/3=11
22/2 ⇔ (20+2)/2=11
28/2 ⇔ (20+8)/2=14