9 x 9 x 81 + 81 x 19
= 81 x 81 + 81 x 19
= 81 x (81 + 19)
= 81 x 100
= 8100
9 x 9 + 81 + 81 x 19
= 81 x 1 + 81 x 1 + 81 x 19
= 81 x ( 1 + 1 + 19 )
= 81 x 21
= 1701
\(9.9+81+81.19\)
\(=81+81+81.19\)
\(=81.\left(1+1+19\right)\)
\(=81.21\)
\(=1701\)
9 x 9 x 81 + 81 x 19
= 81 x 81 + 81 x 19
= 81 x ( 81 + 19 )
= 81 x 100
= 8100
9.9+81+81.19
=81.1+81.1+81.19
=81.(1+1+19)
=81.21
=1701
9x9+81+81x19
= 81+81+81x19
= 81x(1+1+19)
=81x21=1701
9 x 9 x 81 + 81 x 19
= 81 x 81 + 81 x 19
= 81 x ( 81 + 19 )
= 81 x 100
= 8100
