Question

Lane uses counters to make a 4 X 7 array and a 1 X 7 array. What size array can he make using all of these counters?3rd grade subject

Answer 1

5 x 7 array

Step-by-step explanation:

Lane makes a 4 X 7 array and a 1 X 7 array.

Note that the second number 7 is the same in both cases.

Therefore, the array size that he can make using all of the counters is:

`\begin{gathered} (4*7)+(1*7) \\ =(4+1)*7 \\ =5*7 \end{gathered}`

Lane can make a 5 x 7 array using all of the counters.