Question

Calculați prin adunare repetată de termeni egali:

A)5 x 27
6 x 69

B) 7 x 53
2 x 37

C) 5 x 34
4 x 66

Answer 1

a)5×27=27+27+27+27+27=135
6×69=69+69+69+69+69+69=414
b)7×53=53+53+53+53+53+53+53=371
2×37=37+37=74
c)5×34=34+34+34+34+34=170
4×66=66+66+66+66=264

Answer 2

a)
5×27=27+27+27+27+27=135
6×69=69+69+69+69+69+69=414
b)
7×53=53+53+53+53+53+53+53=371
2×37=37+37=74
c)
5×34=34+34+34+34+34=170
4×66=66+66+66+66=264