Question

Resolva as expressões númericas

Answer 1

Resposta:

A) -12

B) +6

C) +21

D) +4

E) -11

Explicação passo-a-passo:

A) -12

$(-10) - (-8) + ( -2) - (+5) + (-3) \\\\-10 + 8 -2 - 5 -3 \\\\-2 -7 -3 \\\\-12$

B) +6

$(20-25) -5 + (18 -7 +5) \\\\-5 -5 + (18 -2 ) \\\\-10 + 16 \\\\+6$

C) +21

$8 - (-6) + (-5) + (8 -3 +5 - 10 + 12)\\\\8 +6 -5 + (5 + 5 - 10 + 12)\\\\9 + (12) \\\\+21$

D) +4

$(+3 -10 -5 + 7 -12) - (-8 +3 -4 +6 - 18) \\\\(-7 +7 -5 -12) - (-8 -1 +6 -18) \\\\(-17) - (-21)\\\\-17 + 21\\+4$

E) -11

$+10 + (-6-3) -4 -(+8 -5) - (-7 +12) \\\\+10 -9 - 4 -(+3) - (+5) \\\\1 - 4 - 3 - 5\\\\-11$

Espero que tenha entendido o conteúdo, bons estudos.