Question

12x7+12x3. kb đc k

Answer 1

\(12.7+12.3\)

\(=12.\left(7+3\right)\)

\(=12.10\)

\(=120\)

Answer 2

\(12\times7+12\times3\)

\(=12\times\left(7+3\right)\)

\(=12\times10\)

\(=120\)

     Hk tốt ~

Answer 3

-Trl

= 12 x ( 7 + 3 )

= 12 x 10

= 120

_Hc tốt

Answer 4

   12 x 7 + 12 x 3

= 12 x ( 7 + 12 )

= 12 x 19

= 228

Answer 5

Trl:

12 x 7 + 12 x 3

= 12 x ( 7 + 3 )

= 12 x 10

= 120

Hc tốt