Question

Calcula:
a) 10 + (+2) =
b) −3 + (+6) =
c)−4 + (−13) =
d)−9 + (−2) =
e)8 + (−10) =
f)−1 + (−5) =
g)15 + (−11) =
h)−9 + (+12) =
i)−30 + ( +20) =

Answer 1

Respuesta:

Explicación paso a paso: Tener en cuenta

+.+=+

- . - = -

+ . - = -

- . += -

a) 10 + (+2) = 12

b) −3 + (+6) =6

c)−4 + (−13) = -17

d)−9 + (−2) = -11

e)8 + (−10) = -2

f)−1 + (−5) = -6

g)15 + (−11) = 4

h)−9 + (+12) = 3

i)−30 + ( +20) =-10