6. Multiplication and division
United States of America
Grade 3
6.01 Groups and arrays
Lesson
Are you ready?
Do you remember how to arrange objects into an array? Try arranging $20$20 objects into an array with $5$5 rows and $4$4 columns.
Learn
In this video we see how rows and columns (called an array), can be used to solve multiplication.
Apply
Which number sentence describes the array?
There may be more than one correct answer.
$8\times10=80$8×10=80
A$10\times8=80$10×8=80
B$8\times80=10$8×80=10
C
Remember!
We get the same answer whichever way we look at our array.
