 My 3 kids were fighting to get on the computer last night to do Maths. I think its brilliant - they even missed X-factor to do Maths!

# Maths Help Videos

The Maths help videos are displayed categorized by Primary Grade and then by mathematical Strand. Where videos content exceeds the skills appropriate to a grade, the video will be associated to all relevant grades.

We would like to thank Khan Academy for sharing it's mathematical related videos on 4to12maths.com Note: All Khan Academy content available for free at www.khanacademy.org

### Number

 Two digit and single digit addition - larger numbers Adding a two digit number to a single digit number eg. 99 + 9. This video also introduces the concept of carrying as well as using the number line to explain addition. Multiple digit addition Quick review of adding two individual numbers eg. 7 + 8. Adding two digit numbers to a single digit eg. 24 + 8. Adding two digit numbers to a two digit number eg. 28 +35. Adding a four digit number to a three digit number eg. 2015 + 143. Introduction to borrowing or regrouping Subtracting a single digit number from a two digit number eg. 17 - 9. Concepts of Units, Tens and Hundreds. Concept of borrowing and regrouping for subtracting the following digit numbers from one another eg. 22 - 17, 703 - 67, 953 - 754. Explanation of why borrowing / regrouping works when subtracting numbers Explanation of why borrowing / regrouping works when subtracting numbers. This shows an explanation of subtracting multi-digit numbers using their expanded forms. Examples shown are the subtracting multi-digit number eg. 1,005 - 616, 732 - 23, 512 - 38. Introduction to multiplication Multiply two individual numbers eg. 2 x 3, 4 x 3. Multiplying numbers by 1 and multiplying numbers by 0 (zero). Introduction to the multiplication tables : 1 to 9 Multiplication tables from 1 to 9. Introduction to the multiplication tables : 10 to 12 Multiplication tables from 10 to 12 Introduction to division An introduction to division. Dividing 1 digit number by another 1 digit number. Dividing a 2 digit number by a single digit number. Introduces us to the concept of the remainder and basic long division. Dividing into larger numbers. Introduction to long division and remainders Long division approach including remainders. Dividing a 2 digit number by 1 digit number. Dividing a 3 digit number by a single digit number. Place Value 1 : Find the place value of a number Find the place value of 3 in 4356. Write a number in expanded form, thousands, hundreds, tens and units. Place Value 3 : Write a number in expanded form. Write 14,897 in expanded form.

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