Question

2155 - ( 174 + 2155) + (-68 + 174)

Answer 1

2155 - ( 174 + 2155) + (-68 + 174)

= 2155 - 2329 + 106

= -174 + 106

= -68

Answer 2

Ta có: 2155 - (174 + 2155) + (-68 + 174)

      =  2155 - 174 - 2155 + (-68) + 174

      = (2155 - 2155) - 174 + 174 + (-68)

      = 0 + 0 + (-68)

      = -68

Answer 3

= 2155 - 174 - 2155 - 68 +174

= (2155 - 2155) + (174 - 174) - 68

= 0 + 0 - 68

= - 68

Answer 4

2155 - ( 174 + 2155) + (-68 + 174)=2155-174-2155-68+174

=(2155-2155)+(174-174)-68

=0+0-68

=0-68

=-68

Answer 5

cái này băng 68 dễ mà

Answer 6

2155 - ( 174 + 2155) + (-68 + 174)=2155-174-2155-68+174

=(2155-2155)+(174-174)-68

=0+0-68

=0-68

=-68

Answer 7

=(2155-2155)+(174+174)+(-68)

= 0+ 0 + (-68)

=-68

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