Question

preciso para hoje
PORFAVOR!!!!!!
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Answer 1

Resposta:

a) 5 + 6 = 11

(5 + 6) + 6 = (11) + 6

11 + 6 = 11 + 6

17 = 17

b) 2² . 3 = 3² + 3

(2² . 3) - 3 = (3² + 3) - 3

(4 . 3) - 3 = (9 + 3) - 3

12 - 3 = 12 - 3

9 = 9

c) 3 + 4.5 = 23

(3 + 4.5) × 5 = (23) × 5

(3 + 20) × 5 = 115

(23) × 5 = 115

115 = 115

d) 2 + 4 = 6

(2 + 4) × 1/2 = (6) × 1/2

6 × 1/2 = 6 × 1/2

6/2 = 6/2

3 = 3