Respuesta :
Given:
The equation is:
[tex]24+12=\_\_\times (8+4)[/tex]
A model with 3 rows of 8 and 3 rows of 4.
To find:
The missing value in Ming's equation.
Solution:
We have,
[tex]24+12=\_\_\times (8+4)[/tex] ...(i)
A model with 3 rows of 8 and 3 rows of 4. Using this information, we get
[tex]24+12=3\times 8+3\times 4[/tex]
Taking out the common factor 3, we get
[tex]24+12=3\times (8+4)[/tex] ...(ii)
On comparing (i) and (ii), we get the missing value is 3.
Therefore, the missing value in Ming's equation is 3.