## Category: Numbers

### Negative numbers

In this guide, learn what negative numbers are with our easy-to-understand definition & take a look at some examples!

### Positive numbers

In this guide, learn what positive numbers are with our easy-to-understand definition and take a look at some examples!

### How to write numbers in words

Learn all about word form and how to write number words, and explore examples of word form and writing numbers on a check!

### What is prime factorisation?

Learn about prime factors and prime factorisation and how we use them in maths. Then try some questions to test your knowledge!

### What is a rational number?

Learn about rational numbers including the rational numbers definition, what types of numbers are rational & how to use rational numbers.

### What is a composite number?

Learn what composite numbers are, read our easy-to-understand definition and have a go at some practice problems!

### What is an integer?

In this guide, learn what integers are, read an easy-to-understand definition and take a look at some examples!

### What is a prime number?

Learn what prime numbers are, read an easy-to-understand definition, check out some examples and see a list of prime numbers from 1 to 100!

### What is expanded form?

Learn what expanded form is and why it’s useful, take a look at our examples and have a go at some questions!

### What is place value?

Learn what place value is and take a look at some place value charts! We’ve also included some questions for you to try.

### What are whole numbers?

Learn what whole numbers are, read an easy-to-understand definition and take a look at some examples of whole numbers!

### Find One More or Less Than a Given Number 10–20

Find One More or Less Than a Given Number 10–20 One more means the number that comes next when you

### Solve Problems Using Positive Integer Scaling

Solve Problems Using Positive Integer Scaling If two things are in proportion then doubling one means you double the other.

### Solve Problems Involving +/- (Missing Numbers)

Solve Problems Involving +/- (Missing Numbers) Use what you know about addition and subtraction number facts to help you solve

### Read Numbers in Millions

Read Numbers in Millions 1 million is written as 1,000,000. 2 million is writtten as 2,000,000. For the number 4,346,867 =>There

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