Răspunsuri

2014-04-01T18:34:39+03:00


|-----|+9

|-----|+6

|-----|+18

9+6+18=33

72-33=39

39:3=13

13+9=22(primul nr)

13+6=19(al doilea nr)

13+18=31(al treilea nr)

verificare:22+19+31=72

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2014-04-01T18:48:42+03:00
9+6+18=33
72-33=39
39:3=13
9+13=22
6+13=19
18+13=31