Question

3. Efetue as adições algébricas. a) (+3) – (+5) – (–10)
b) (+2) + (–6) – (+5) + (+2)
c) (–5) – (–8) + (–7) – (–9) + (–3)
d) –6 + 6 + 6 - 4 + 4
e) –3 + 4 + 5 + 3 + 6
f) –1 + 1 – 4 + 4 – 5 + 6
g) 13 – 7 – 6 – 9 + 14

Answer 1

Explicação passo-a-passo:

a) (+3)-(+5)-(-10)

+3 -5 +10

+13 -5

8

b) (+2)+(-6)-(+5)+(+2)

+2 -6 -6 +2

+4 -12

-8

c) (-5)-(-8)+(-7)-(-9)+(-3)

-5 +8 -7 +9 -3

-15 +17

+2

d) -6 +6 +6 -4 +4

-10 +16

+6

e) –3 + 4 + 5 + 3 + 6

-3 +18

+15

f) –1 + 1 – 4 + 4 – 5 + 6

-10 +11

+1

g) 13 – 7 – 6 – 9 + 14

-22 +27

+5