Question

9x1+9x9+9

Answer 1

=99 nhaaa

Answer 2

9 x 1 + 9 x 9 + 9

= 9 x ( 1 + 9 + 1)

= 9 x 11 

= 99

Answer 3

9x1+9x9+9=99

nhận ra mình ko

Answer 4

\(9x1+9x9+9\)

\(=9x1+9x9+9x1\)

\(=9x\left(1+9+1\right)\)

\(=9x11\)

\(=99\)

Answer 5

9x+9x9+9==99

kick nhe minh la Minh ne ung ho nhe

Answer 6

  9x1 + 9x9 + 9

= 9    + 18   + 9

= 36.

Answer 7

99 k mik nha

Answer 8

=9(1+9+1)

=9*11=99

Answer 9

\(=9\times1+9\times9+9\)

\(=9\times\left(9+1+1\right)\)

\(=9\times11\)

\(=99\)

Answer 10

mik trả lời đầu tiên đó k mik nha

Answer 11

9x1+9x9+9

=9x1+9x9+9x1

=9x(1+9+1)

=9x11

=99

Answer 12

9x1 + 9x9 + 9

= 9x1 + 9x9 + 9x1

= 9x (1+9+1)

= 9 x 11

= 99

Answer 13

9 x 1 + 9 x 9 + 9 = 9 x 1 + 9 x 9 + 9 x 1

                           = 9 x (1 + 9 + 1)

                            = 9 x 11

                             = 99