Question

urgenteeeeeeeeeeeeeeee​

Answer 1

Resposta:

a) 50 - 2 . [ 8 + (10-9) - 3]

50 - 2 . [ 8 + 1 - 3]

50 - 2 . 6

50 - 12

38

b) 2 . [ ( 6 + 7 . 3) ÷ 9 + (21 - 5 . 2)]

2 . [ ( 6 + 21) ÷ 9 + (21 - 10)]

2 . [ 27 ÷ 9 + 11]

2.[3+14]

2.17

34