Question

Calcular
a) (12) + (-12) + (-12) + (12)
b) (+80)-(-15)=
c) (+68)-(+24)=
d)(-37)-(+20)=
Grato a quem poder ajudar

Answer 1

Resposta:

A=0

B=+95

C=+44

D=-57

Explicação passo-a-passo:

A=(12)+(-12)+(-12)+(12)

12-12-12+12

0-12+12

-12+12

0

B=(+80)-(-15)

80+15

+95

C=(68)-(+24)

68-24

+44

D=(-37)-(+20)

-37-20

-57

Answer 2

$a)(12 ) + ( - 12) + ( - 12) + (12) \\ 12 - 12 + 12 - 12 \\ 0 + 12 - 12 \\ 0 + 0 \\ \large \boxed{ \: \red{0 \: }}$

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$b)( + 80) - ( - 15) \\ 80 + 15 \\ \large \boxed{ \: \red{95 \: }}$

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$c)( + 68) - ( + 24) \\ 68 - 24 \\ \large \boxed{ \: \red{44 \: }}$

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$d)( - 37) - ( + 20) \\ - 37 - 20 \\ - (37 + 20) \\ \large \boxed{ \red{ - 57}}$

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Att, IzabelaCristina2006 ❤️ ♈