Maria are 28 de pungi bomboane a cate 7 bomboane punga iar Marian 75 de pungi a cate 7 bomboane.Cate bomboane au cei doi impreuna?
REZOLVARE:
1.Cate bomboane are Maria?
28x7=196
2.Cate bomboane are Marian?
75x7=525
3.Cate bomboane au impreuna?
196+525=721
Ex prob 28x7+75x7=196+525=721