Question

1. Suma a cinci numere consecutive este 60. Gaseste aceste cinci numere. metoda figurativa ( grafica )

2. In clasa lui Andreei sunt 28 de elevi , baieti fiind de 3 ori mai putini decat fetele. Cati baieti si fete sunt? metoda figurativa ( grafica )

Answer 1

28:3=9 fete
ear baieti 19

Answer 2

1. MET. FIGURATIVA  a= un segment

                                     b=un segment + 1

                                     c=un segment + 1+ 1

                                     d=un segment + 1+ 1+ 1

                                     e=un segment + 1+ 1+ 1+ 1

60-10=50  

50:5=10 (A)

10+1=11 (B)

10+1+1=12 (C)

10+1+1+1=13 (D)

10+1+1+1+1=14 (E)

V: 10+11+12+13+14=60