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Maths Support

Maths Calculation Videos

These maths calculation videos show the different stages in calculation that are taught at Cecil Road Primary School.  We hope you will find these useful in showing the stages that lead up to the standard methods that you may be more familiar with.  We teach the previous steps to ensure that children have a thorough understanding of the number system.

Maths Newsletter (termly)
Available on the downloads page

Downloads

Partitioning

Breaking down a number into its place value e.g. tens and units

Video - Partitioning Example - click here

Addition


1.  Adding using a numberline

Children use the numberline to help them add two 2-digit numbers together.

Video - Adding using a numberline - click here.


2.  Children use partitioning to add tens and units separately before recombining to find the final answer.

Video - Adding Step 2 - click here


3.  Numbers are partitioned but this time set out in columns to add the units and then the tens.

Video - Adding Step 3 - click here.


4.  Numbers are partitioned, set out in columns but this time the units column equals more than ten.

Video - Adding Step 4 - click here.


5.  Full standard method for addition

Video - Adding step 5 - click here

Subtraction


1. Subtraction using a numberline

Children use a numberline to find the difference between two numbers. They jump from the lowest number to the highest, using milestone numbers along the way.

Video - Subtraction using a numberline - click here.


2.  Numbers are partitioned, set out in columns and units are subtracted first.

Video - Subtraction step 1 - click here.


3.  Numbers are partitioned and set out in columns.  Units are subtracted first, but where this is not possible is exchanged into the units column.

Video - Subtraction step 2 - click here.


4. Full standard method for subtraction.

Video - Subtraction step 3 - click here.

Multiplication


1. Children use practical resources to make arrays to show that multiplication is the same as repeated addition.

Video - Arrays - click here.


2.  The Grid Method - When multiplying a number larger than ten, they are partitioned and then multiplied.

Video - Multiplication Step 1 - click here.

Video - Multiplication Step 2 - click here.

Video - Multiplication Step 3 - click here.


3.  When children have a clear understanding of the grid method, they move onto the full standard method for multiplication.

Video - Multiplication Step 5 - click here.

Video - Multiplication Step 6 - click here.

Division


1. Children use practical resources to show that sharing is the same as division.

Video - Division by sharing - click here.


2.  Children use a blank numberline to see that division is the same as repeated addition.

Video - Division repeated subtraction - click here.


3.  Children then move on to the “chunking” method.

Video - Division step 3 - click here.

Video - Division step 4 - click here.

Video - Division step 5 - click here.

We hope you have found these videos useful.  If you have any comments, or suggestions for other support for maths you would like to see on our website, then please speak to Miss Day.