Question

am nevoie urgent!!
dau 5 stele si coroana!!​

Answer 1

Răspuns:

Explicație pas cu pas:

Problema 5:

a) (8 - 5) x 7 = 3 x 7 = 21

b) (3 + 6) x 4 = 9 x 4 = 36

c) 7 x (6 + 4 - 3) = 7 x (10 - 3) = 7 x 7 = 49

d) (10 - 6 - 2) x 8 = (4 - 2) x 8 = 2 x 8 = 16

Problema 6:

2 x 9 + 3 x 9 + 1 x 9 = (2 + 3 + 1) x 9 = 6 x 9 = 54

6 x 3 + 6 x 5 + 6 x 2 = (3 + 5 + 2) x 6 = 10 x 6 = 60

4 x 10 - 4 x 2 + 4 x 5 = (10 - 2 + 5) x 4 = 13 x 4 = 52