Question

99 x 120 + 120 x 1

Answer 1

Số phải tìm là:

 120 x (99 + 1) = 12000

   Đáp số: 12000

Answer 2

99x120+120x1=120x(99+1)=120x100=12000

Answer 3

\(99\times120+120\times1\)

\(=120\times\left(99+1\right)\)

\(=120\times100\)

\(=12000\)

Answer 4

99 x 120 + 120 x1 = 12000