Question

(+63)÷(+7):
(-1)+(-9):
(-2)-(-2):
(+1)-(+1):
(+3)+(+8):
(+8)-(+6):
(-8)-(-5):
(+18)÷(-2):
(+6)×(-2):
(+9)-(+7):
​

Answer 1

Multiplicación, división, resta y suma

(+63)÷(+7) = 9

(-1)+(-9) = -10

(-2)-(-2) = 0

(+1)-(+1) = 0

(+3)+(+8) = 11

(+8)-(+6) = 2

(-8)-(-5) = -3

(+18)÷(-2) = -9

(+6)×(-2) = -12

(+9)-(+7) = 2