Question

2. Află rezultatul in două moduri: a) 4x (7.2) b) 5x (10 - 4) =​

Answer 1

Răspuns:

$a) \: 4 \times (7 + 2) = 4 \times9 = \boxed{36}$

$a) \: 4 \times (7 + 2) = 4 \times 7 + 74 \times 2 =28 + 8 = \boxed{36}$

$b) \: 5 \times (10 - 4) = 5 \times \: 6 = \boxed{30}$

$b) \: \: 5 \times (10 - 4) = 5 \times 10 - 5 \times 4 = 50 - 20 = \boxed{30}$