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taniamocanu13
3

Dan si Corina au impreuna 112 timbre. Corina are de 3 ori mai multe decat Dan.Cate timbre are fiecare?

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teodora100

D+C=112 C=3D D+3D=112 4D=112 D=112:4=28 timbre are Dan C=3x28=84 timbre are Corina

roxybiank07

Notam Dan=D Notam Corina=C C+D=112 timbre C=3D Inlocuim C cu 3D 3D+D=112 timbre 4D=112 timbre D=28 timbre C=3D C=3 x 28 timbre C=74 timbre Dan are 28 Corina are 74

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