Question

1) Calcule o valor numérico da expressão [(18 + 3 · 2) ÷ 8 + 5 · 3] ÷ 6. *

a) 6

b) 3

c) 5

d) 9

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Answer 1

$\sf{((18 + 3 \times 2) \div 8 + 5 \times 3) \div 6} \\ \sf{((18 + 6) \div 8 + 5 \times 3) \div 6} \\ \sf{(24 \div 8 + 5 \times 3) \div 6} \\ \sf{(3 + 5 \times 3) \div 6} \\ \sf{( 3 + 15) \div 6} \\\sf{18 \div 6} \\ \red{ \boxed{ \green{ \boxed{ \pink{ \boxed{3} }} } } }$

R: item (b)

Att: Armando.