Question

4 moses drew the array to solve a problem. what multiplication problem is he trying to solve? 9×4=? 5 circle columns to break the array into two parts. then fill in the blanks to show how you can use the parts to solve the problem. (×)+(×)=? so, ×= 6 describe another way you can break apart the same array to solve the problem.

Explanation:

Step1: Identify rows and columns

The array has 9 rows and 4 columns, so the multiplication problem is $9\times4$.

Step2: Break array into parts (example for question 5)

We can circle 2 columns and 2 columns. So, $(9\times2)+(9\times2)$.
$9\times2 = 18$, and $18+18=36$.

Step3: Another way to break (for question 6)

We can break the array into a $6\times4$ part and a $3\times4$ part. First part: $6\times4 = 24$, second part: $3\times4=12$, and $24 + 12=36$.

Answer:

1. $9\times4$
2. $(9\times2)+(9\times2)=18 + 18=36$
3. Break it into a $6\times4$ part and a $3\times4$ part. Calculate $6\times4 = 24$ and $3\times4 = 12$, then $24+12 = 36$.