Year 4 Maths

Spring term

Block A

Lesson 1



Autumn term

Summer term




How to use mental addition or subtraction

To find the answers using mental  addition, you will need to make sure you partition the numbers first then add the larger units together followed by the smaller units, once you have two new numbers you add these together to give you the answer.For mental subtraction you follow the same steps but this time you are using subtraction instead of addition






Practice answering some more questions using your calculator.

Buy Primary Maths Books here!


Free to use Mental addition and subtraction- ks2 maths resources, activities & worksheets

Copyright 2010. All rights reserved

Mental addition and subtraction







Solve using mental maths strategies


a) =
b) =
c) =
d) =
e) =