Question

resolva

A)8×5-20÷4=

B) 6+2×(9÷1-5)

Answer 1

a) 8.5 - 20 ÷ 4
    8.5 - 5
     40 -5 
      = 35

b) 6 + 2.(9÷1-5)
    6 +2.(9 -5) 
    6 +2.(4)
     6 + 8
     = 14

Bons Estudos :)

Answer 2

A)
= 8 × 5 - 20 ÷ 4 
= 40 - 5
= 35

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B)
= 6 + 2 × (9 ÷ 1 - 5)
= 6 + 2 . (9 - 5)
= 6 + 2.4
= 6 + 8
= 14