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

Answer:

5 x 7 array

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:

$\begin{gathered} (4\times7)+(1\times7) \\ =(4+1)\times7 \\ =5\times7 \end{gathered}$

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