Main Road, Marchwood, Southampton, Hampshire, SO40 4ZH

023 8086 3105

Marchwood Junior School

Welcome to our school

Calculation strategies and overviews

Addition and Subtraction

This video contains the mathematical written strategies for addition and subtraction which children
use from the start of Year 3 through to the end of Year 6. Please only use this video to support your
child with methods that your child is using in school and please do not progress to methods taught in
later year groups. When children are introduced to methods will vary, as this is due to their current
level of understanding, so if you are unsure please contact your child’s class teacher who will be
happy to help. The timings for which part of the video are relevant to which year group are provided
below.


Introduction – until 1m 03 s.

Addition
Year 3: 1.05 – 5.30
Year 4: 4.36 – 7.46
Year 5: 7.46 – 8.57
Year 6: 8.58 – 10.14

 

 

Subtraction
Year 3: 10.28 – 14.12
Year 4: 14.12 – 19.40
Year 5: 15.34 – 20.56
Year 6: 20.56 – 24

 

Multiplication and Division

This video contains the mathematical written strategies for multiplication and division which
children use from the start of Year 3 through to the end of Year 6. Please only use this video to
support your child with methods that your child is using in school and please do not progress to
methods taught in later year groups. When children are introduced to methods will vary, as this is
due to their current level of understanding, so if you are unsure please contact your child’s class
teacher who will be happy to help. The timings for which part of the video are relevant to which year
group are provided below.

 

Introduction – until 1m 03 s.

 

Multiplication
Year 3: 1.05 – 4.33
Year 4: 3.45 – 6.10
Year 5: 5.16 – 10.41
Year 6: 7.40 – 13.30

 

 

Division
Year 3: 13.30 – 20.07
Year 4: 19.08 – 21.54
Year 5: 21.54 – 25.25
Year 6: 23.27 – 30.56