Question

ATIVIDADE
1- Resolva as expressões numéricas
a) 18:2-5x6-4-
b) 240:3+5 - 19 -
0 270:9-3+(11+25 x 2) -
d) (640 - 508):6-32=
e) 3+(16-4x 3) - 6:2=
arma e efetua
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Answer 1

$a)18 \div 2 - 5 \times 6 - 4 \\ 9 - 30 - 4 \\ 9 - 34 \\ \boxed{ - 25}$

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$b)240 \div 3 + 5 - 19 \\ 80 + 5 - 19 \\ 85 - 19 \\ \boxed{ 66}$

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$c)270 \div 9 - 3 + (11 + 25 \times 2) \\ 30 - 3 + (11 + 50) \\ 30 - 3 + 61 \\ 91 - 3 \\ \boxed{ 88}$

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$d)(640 - 508) \div 6 - 32 \\ 132 \div 6 - 32 \\ 22 - 32 \\ \boxed{ -10}$

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$e)3 + (16 - 4 \times 3) - 6 \div 2 \\ 3 + (16 - 12) - 3 \\ 3 + 4 - 3 \\ 0 + 4\\\boxed{ 4}$

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Att, IzabelaCristina2006 ❤️ ♈