Question

3. Resuelve as siguientes adiciones y sustracciones:

a.) [54 – 37 + (– 42)] – (12 – |– 8|)

b.) [– 33 + 43 – (– 10 + 6 – 18) + 43 – (– 15 – 6 – 9 + 17)] – (12 – |– 11|)

c.) [– 17 + 33 – (– 16 + 16 – 11) + 43 – (– 11 – 2 – 4 + 13)] – (18 – |– 19|)

d.) [– 12 + 3 –6 – 19 + (– 8 + 16 – 11) + 21 – (– 15 – 6 – 9 + 11)] – (19 – |– 16

Answer 1

A) [54-37-42] - (12-8)
[-25]- 4
25 - 4
=21

B) [-33+43-(-22)+43•(-13)] -(12-11)
[-33+43+22-599]-1
[-527]-1
527-1
=526