 # 6.14 Multiplication by 7

Lesson

## Ideas

Multiplication looks at equally sized groups. Can you solve these multiplication questions?

### Examples

#### Example 1

Find the value of 5\times6.

Worked Solution
Create a strategy

We can think of this as 5 groups of 6, like the image below which has 5 groups of 6 squares.

Apply the idea

The above image has 30 squares in total.

5\times6=30

#### Example 2

Find the value of 2\times6.

Worked Solution
Create a strategy

We can think of this as 2 groups of 6, like the image below which has 2 groups of 6 stars.

Apply the idea

The above image has 12 stars in total.

2\times6=12

Idea summary

Thinking of multiplication as equally sized groups of objects can make multiplication easier.

## 7 times tables

Now let's look at the 7 times tables.

### Examples

#### Example 3

Find the value of 7\times9.

Worked Solution
Create a strategy

We can think of this as 7 groups of 9, like the image below which has 7 groups of 9 squares.

Apply the idea

The above image has 63 squares in total.

7\times9=63

Reflect and check

We can also think of this as 5 \times 9+2\times 9.

Idea summary

We can use a split strategy to help answer 7 times tables.

7 groups is the same as 5 groups + \ 2 groups.

### Outcomes

#### MA2-6NA

uses mental and informal written strategies for multiplication and division