Question

55+45-45+55

Answer 1

55+45-45+55

= 55+0+55

=   110

ung ho nha*****************

Answer 2

55+45-45+55 = 55 + 0 + 55 = 110

Answer 3

55+45-45+55

  =55+0+55

  =110

Answer 4

55+45-45+55

=(55+45)-(45+55)

=100-100

=0