Grade 3 · Number · Multiplication · Lesson 4
Arrays
Use equal rows and columns to organize multiplication so it is easy to see and count.
Rows and columns
An array shows equal groups
This array has 3 rows. Every row has 4 dots.
Two ways to read the array
Read by rows
3 × 4 = 12
Three rows with four dots in each row.
Read by columns
4 × 3 = 12
Four columns with three dots in each column.