Question

dau coroana la primul raspuns

Answer 1

1)15+30 =45 probleme+ex

45 ×4=180

al doilea mod

15×4 =60 probleme

30×4=120 ex

60+120=180

2)12 +15 =27 cutii

27×12= 324

al doilea mod

12×12 =144 prima zi

12×15=180 a doua zi

144+180=324