Question

1+2-3-4+5+6-..............-303-304+305+306=???

Answer 1

dap an la 307

Answer 2

1+2-3-4+5+6-......-303-304+305+306

=(1+2-3-4+5)+.....+(301-302+303+304)+(305+306)

=1+1+1+.....+611

=1*76+611

=76+611

=687

Answer 3

687 k minh nhe

Answer 4

1 + 2 - 3 - 4 + 5 + 6 -.............. - 303 - 304 + 305 + 306 = 687 

kick

and

Answer 5

687 đúng 100000000%

Answer 6

=307 đúng 100%