Răspuns :
156 × 3 + 87 × 2 = 468 + 174 = 642
6 × 9 = 54
5 × 9 = 45
446 × 9 = 4.014
393 × 9 = 3.537
570 × 9 = 5.130
6.921 × 9 = 62.289
156 × 3 + 87 × 2 = 468 + 174 = 642
6 × 9 = 54
5 × 9 = 45
446 × 9 = 4.014
393 × 9 = 3.537
570 × 9 = 5.130
6.921 × 9 = 62.289