Lesson

Multiplication looks at equally sized groups. Can you solve this problem?

Find the value of 3\times 9.

Worked Solution

Idea summary

Multiplying by three is the same as tripling and can be thought of as the total of three equally sized groups.

Let's look at how to multiply numbers by 6.

Find the value of 6\times3.

Worked Solution

Idea summary

You can use a doubling strategy to multiply a number by 6. Start by multiplying the number by 3, then double the answer.

uses mental and informal written strategies for multiplication and division