Question

(+10)+(+9)=
(-100)+(-80)=
(-45)+(+60)=

me ajudem qual e o resultado???? por favor​

Answer 1

$\large{a)( + 10) + ( + 9) } \\ \large{10 + 9} \\ \large \boxed{ \red{19}}$

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$\large{b)( - 100) + ( - 80)} \\ \large{ - 100 - 80} \\ \large \boxed{ \red{ - 180}}$

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$\large{c)( - 45) + ( + 60)} \\ \large{ - 45 + 60} \\ \large \boxed{ \red{15}}$

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Att, IzabelaCristina2006 ❤️ ♈