Question

A)(+48)-(-85)=
B)(-9)-(+2)=
C)(-10)+(8)-(3)=
Deu um Branco​

Answer 1

$a)( + 48) - ( - 85) \\ 48 + 85 \\ \color{red}133$

$b)( - 9) - ( + 2) \\ - 9 - 2 \\ \color{red} - 11$

$c)( - 10) + (8) - (3) \\ - 10 + 8 - 3 \\ - 2 - 3 \\ \color{red} - 5$

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