Question

Resolva as operações da adição: A)(+3)+(+5)= B) (-13)+(+8)= C) (+12)+(-9)= D) (-9)+(-13)​

Answer 1

A)

$\large{( + 3) + ( + 5)} \\ \large{3 + 5} \\ \large \boxed{ \: \red{{8 \: }}}$

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B)

$\large{( - 13) + ( + 8)} \\ \large{ - 13 + 8} \\ \large \boxed{ \red{{ - 5 }}}$

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C)

$\large{( + 12) + ( - 9)} \\ \large{12 - 9} \\ \large \boxed{ \: \red{{3 \: }}}$

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D)

$\large{( - 9) + ( - 13)} \\ \large{ - 9 - 13} \\ \large \boxed{ \red{{ - 22 }}}$

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Att, IzabelaCristina2006 ❤️ ♈