Question

9+9+9-9-9-9

Answer 1

9+9+9-9-9-9=27-9-9-9-9=-9

Answer 2

bằng 0

Answer 3

9+9=9+9-9-9-9=0

Answer 4

bằng 0

Answer 5

9+9+9-9-9-9-9

= (9-9)+(9-9)+(9-9)

=0+0+0

=0

Answer 6

-9 nhé bạn

Answer 7

9 + 9 + 9 - 9 - 9 - 9

= 18 + 9 - 9 - 9 - 9

= 27 - 9 - 9 - 9

= 18 - 9 - 9

= 9 - 9

= 0

Answer 8

9 + 9 + 9 - 9 - 9 - 9 = 9 x 3 - 9 - 9 - 9= 27 - 9 - 9 - 9 = 0

Answer 9

âm 9 (-9) nhé

Answer 10

bằng 0 nhé

Answer 11

9 + 9 + 9 - 9 - 9 - 9

= 18 + 9 - 9 - 9 - 9

= 27 - 9 - 9 - 9

= 18 - 9 - 9

= 9 - 9

= 0

Answer 12

Ta có : 

9 + 9 + 9 - 9 - 9 - 9

= 18 + 9 - 9 - 9 - 9

= 27 - 9 - 9 - 9

= 18 - 9 - 9

= 9 - 9

= 0

Answer 13

9 + 9 + 9 - 9 - 9 - 9

= 18 + 9 - 9 - 9 - 9

= 27 - 9 - 9 - 9

= 18 - 9 - 9

= 9 - 9

= 0

Answer 14

9 + 9 + 9 - 9 - 9 - 9

= 18 + 9 - 9 - 9 - 9

= 27 - 9 - 9 - 9

= 18 - 9 - 9

= 9 - 9

= 0

Answer 15

9 + 9 + 9 - 9 - 9 - 9

= 18 + 9 - 9 - 9 - 9

= 27 - 9 - 9 - 9

= 18 - 9 - 9

= 9 - 9

= 0