Question

Exercitiul 2 si exercitiul 4.Ajutati-ma va rog

Answer 1

2.
3 * (12 + 18) = 3 * 30
3 * 30 = 3 * 30
90 = 90
4 * (25 - 5) = (4 * 25) - (4 * 5)  
4 * 20 = 100 - 20
80 = 80
7 * (80 - 60) = 7 * 20
7 * 20 = 7 * 20
140 = 140
(23 * 4) + (7 * 4) = (23 + 7) * 4
92 + 28 = 30 * 4
120 = 120
4.
3 * 36 + 3 * 28 = 108 + 84 = 192 lei
3 * (36 + 28) = 3 * 64 = 192 lei

Answer 2

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