 Hong Kong
Stage 2

# Multiplication and division using arrays (10x10)

Lesson

An array is a rectangular display of objects and they are very useful in helping us to visualise what multiplication and division mean.

This video will show you how we can use arrays.

#### Worked Examples

##### Question 1

Select the array that shows the following statement:

1. $4$4 times $2$2 A B C D

##### Question 2

Fill in the boxes with the missing numbers.

1. The array shows $\editable{}$ rows of $\editable{}$ squares, or $\editable{}$ columns of $\editable{}$ squares.

There are $\editable{}$ squares in total.

2. The array shows $\editable{}$ rows of $\editable{}$ squares, or $\editable{}$ columns of $\editable{}$ squares.

There are $\editable{}$ squares in total.

3. Hence, evaluate the following.

$4\times9=\editable{}$4×9=

$9\times4=\editable{}$9×4=

##### Question 3

Which number sentence describes the array?

There may be more than one correct answer. 1. $60\times6=10$60×6=10

A

$60\times10=6$60×10=6

B

$10\times6=60$10×6=60

C

$6\times10=60$6×10=60

D

$6\times60=10$6×60=10

E

$10\times60=6$10×60=6

F