Question

Suma a 3 numere naturale consecutive este33 care sunt numerele . Metoda grafica

Answer 1

a+b+c=33
b=a+1
c=b+1⇒ c=b+2
l.....l  a
l.....l+1  b
l.....l+2  c
3l.....l=33-3=30
l.....l=30:3
a=10
b=10+1
b=11
c=11+1
c=12
V: 10+11+12=33

Answer 2

a |------|
b |------|-|
1
c |------|-|-|
1 1

1.33-3=30(suma segmentelor egale)
2.30:3=10 (nr a sau u segment)
3.10+1=11(nr b)
4.11+1=12 (nr c)