# Making arrays

## Learning focus

Learn how to make arrays by making equal groups and building them into columns or rows.

This lesson includes:

- a catch-up quiz
- a video
- a learning summary
- one activity

# Quiz

To get started, let's see how well you know this topic already. Take the catch-up quiz below to find out.

# Learn

Watch this animation from 1st Level Maths and Numeracy. Fin and Snoot count Meebs by putting them into equal rows and columns.

## Example 1

Here are some doughnuts.

Let's arrange them into groups to count them.

There are 4 doughnuts in a row.

There are 2 rows.

We can write this as an addition.

4 + 4 = 8

or we can write this as a multiplication

4 x 2 = 8

There are 8 doughnuts altogether.

## Example 2

Archie wants to arrange some apples in an array.

He has made a full row and started the other rows. Can you fill in the rest?

**How many apples in a row?**

There are 5 apples in a row.

**How many rows are there?**

There are 4 rows.

As a repeated addition this is:

5 + 5 + 5 + 5 = 20

or written as a multiplication

5 x 4 = 20

There are 20 apples altogether.

## Top tip

Make sure you have the same number of things in each row.

# Practise

## Activity 1

Try this interactive activity to see if you can answer the question by making your own array.

# Play

Play **Guardians: Defenders of Mathematica** to learn more about this topic and test your skills.

# There's more to learn

Have a look at these other resources.