Massive update to my highly popular resource鈥�

Found these really hard to find so made my own resources up.
I am unsure why they are so scarce as they often come up in SAT tests etc.
As I like to call them 'missing box sums鈥�
I have included differentiated worksheets and a smart notebook file to accompany the lesson worksheets.
Great for years 3/4 possibly lower ability year 5.

UPDATE: Feb 2018: due to the popularity of the previous version of this resource I have added a additional content similar in nature, for example, 'the role of the equals sign.'
At this age it is important that children understand (leading onto later years and algebra etc) that 鈥楨quals鈥� doesn鈥檛 mean 鈥榯he answer鈥� but is a BALANCE of two equations.

There is a lesson plan included here as well I used for an observation during a Numeracy lesson on the topic.