Number and number processes
What is place value?
Find out how to use place value to change numbers.
What are decimals?
Find out how to write decimals using tenths and hundredths.
What are negative numbers?
Find out how to count backwards from zero and order negative numbers.
What are factors?
Take a look at how to work out the factors of a number.
What are prime numbers?
Find out what a prime number is and put your knowledge to the test.
What are square and cube numbers?
Take a look at some square and cube numbers and learn the pattern that they follow.
What is column addition?
Number columns allow you to quickly add up numbers, this is also known as 'vertical calculations'.
How to use column subtraction
Number columns allow you to take large numbers and subtract one from another, this is also known as 'vertical calculations'.
How to add and subtract in your head
Take a look at how to use mental methods for addition and subtraction.
How to multiply and divide by 0, 1, 10 and 100
Using place value columns is a great way to multiply and divide. Give it a try.
How to multiply in your head
Take a look at how to use mental methods for multiplication.
How to work out division with remainders
How do you work out division problems that have remainders?
Using written methods for short division
Take a look at how to use mental methods for multiplication.
How to solve maths problems
Find out how you can use maths to solve your problems.
What is the order of operations?
Find out how the order of operations shows you which bit of a calculation to do first.
What is a number sequence?
Discover how numbers can be connected in a pattern and see if you can solve the puzzle.
How to partition a number
Find out how partitioning a number can help you solve tricky maths problems.
How can counting on help me add two digit numbers?
How can counting on in tens and units help you add numbers?
How can partitioning help me add two digit numbers?
Make adding two-digit numbers easier with this simple method.
How to round numbers
Discover how to round a number to the nearest ten or hundred and why this can be helpful.
How to round decimal numbers
Rounding numbers can be a useful way to estimate a total. Find out how to round decimals to different significant figures.
How to use estimation to check your answers
Find out about different ways to estimate and check your work.
What is an equation?
Take a look at how equations can be used to solve maths problems.
How to solve missing number problems
Take a look at a missing number problem and see how they are solved.
Video playlist
Measuring length (signed) Video
How to measure the length of a piece of wood, a python and a football pitch.
Numbers - odd or even? Video
How even numbers are divisible by two whereas odd numbers are not.
Using basic algebra to find the weight of three cats (signed) Video
Students find the individual weights of cats using knowledge of their combined weights.
Dividing by ten (signed) Video
An illustration of dividing by ten is given by dancing numbers in the gym.
Multiples of three (signed) Video
A class finds a number from a range between 750 and 800 which is a multiple of three.
Positive and negative numbers (signed) Video
Positive and negative numbers and the addition of positive numbers to negative numbers.
Using multiplication to create models (signed) Video
Using multiplication to work out how many bricks are needed to build a model village.
Place value and three-digit numbers. Video
Three animated characters perform a song about place value.
Making totals with a specified number and value of coins (signed) Video
Making various monetary totals using a specified number and value of coins.
Measuring temperature - freezing point. Video
A presenter at the British Antarctic Survey discusses temperature and freezing point.
Measurement of length (signed) Video
The measurement of length. Wood is measured for shelving in metres and tenths of a metre.
Adding three small numbers by counting on. Video
How to add three small numbers by counting on.
Estimating and calculating distance. Video
Captain Calamity estimates and measures distance and estimates the number of sheep.
Making weekly weather recordings. Video
How to measure and record weather using a thermometer, an anemometer and a rain gauge.
Making three-digit numbers. Video
How to make three-digit numbers, starting with a number and placing another next to it.