Question

(+8) – (+9) + (-7) =
(-12) – (-3) + (+5) =
(+9) + (-13) – (-21) =
(-17) + (+5) – (+20) =
7 – (-12) – (+3) =
-5 – (+11) – (-20) =
-11 – (+6) – (+4) =
- (-3) + (-5) – (+8) =
SUMA Y RESTA DE NUMEROS ENTEROS

Answer 1

Explicación paso a paso:

(+8)-(+9)+(-7) = 8 -9 -7 = -8

(-12)-(-3)+(+5) = -12 +3 +5 = -4

(+9)+(-13)-(-21) = 9 -13 + 21 = + 17

(-17)+(+5)-(+20) = -17 + 5 -20 = -32

7 -(-12)-(+3) = 7 + 12 -3 = +16

-5-(+11)-(-20) = -5 -11 + 20 = +4

-11 -(+6)-(+4)= -11 -6 - 4 = -21

-(-3) +(-5) -(+8) = +3 -5 -8 = -10