Rezolvare
a) 33 x 3 = 3 x 33 = 33 +33 + 33 = 66 + 33 = 99
b) 15 x 2 = 2 x 15 = 15 + 15 = 30
c) 24 x 6 = 6 x 24 = 24 + 24 + 24 + 24 + 24 + 24 = 48 + 48 + 48 = 96 + 48 = 144
d) 19 x 5 = 5 x 19 = 19 + 19 + 19 + 19 + 19 = 38 + 38 + 19 = 76 + 19 = 95
Niciun comentariu:
Trimiteți un comentariu