Question

900+99+1=

ai k minh minh k lai

Answer 1

1000

k cho mk nha

mk k cho bn rồi

Answer 2

900+99+1=1000

Answer 3

900 + 99 + 1

= 900 + 100

= 1000

Answer 4

900 + 99 + 1

= ( 900 + 99 ) + 1

= 999 + 1

= 1000

Answer 5

=1000

Answer 6

900 + 99 + 1

 = 900 + 100

= 1000

Answer 7

900+99+1=1000

k mk mk k lại

  ^*^