Question

(+9) + (-13) – (-21) =
(-17) + (+5) - (+20) =
-7 – (-12) – (+3) = 0
Para tu cuaderno​

Answer 1

Explicación paso a paso:

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

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

-7 – (-12) – (+3) = - 7 + 12 - 3 = 2