Question

Calcule o valor das expressões:
A)5+2:8+5.2=
B)[3.4²-(3.5-8)].2=
C)(2⁴-2³-2²).(1+1³+1⅝)=

Answer 1

a.

5+2÷8+5×2
5+0,25+10
5,25+10
15,25

b.

[3×4^2-(3×5-8)]×2
[3×16-(15-8)]×2
[48-7]×2
41×2
82

c.

(2^4 - 2^3 - 2^2)×(1 + 1^3 + 1(5/8))
(16 - 8 - 4)×(1 + 1 + 13/8)
4 × (2 + 13/8)
4 × (2/1 + 13/8)
4 × (16/8 + 13/8)
4 × 29/8
116/8
14,5

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Boa madrugada e bons estudos!