Question

Calcula
a) (2-10)+[5-(8+2)]
b) (12-3)-[1-(2-6)]
c) [9-(+5)]+[7+(10)]
AyUdA xD ​

Answer 1

A). (2-10)+[5-(8+2)]

(- 8) + (5 - 10)

- 8 + (- 5)

- 8 - 5

= - 13

B). (12-3)-[1-(2-6)]

9 - (- 1 (- 4))

9 - (1 + 4)

9 - 5

= 4

C). [9-(+5)]+[7+(10)]

4 + (7 + 10)

4 + 17

= 21