I made a tuck shop at home. I picked out items to sell and created my own price list.
![](https://blogs.glowscotland.org.uk/as/public/methlickspring/uploads/sites/2993/2020/06/22082531/IMG_8045-e1592810751245.jpg)
I then opened the shop up to customers (my family). They were to pick one item and then pay using a £1 coin. I then had to work out how much change they would get back.
![](https://blogs.glowscotland.org.uk/as/public/methlickspring/uploads/sites/2993/2020/06/22082705/IMG_8046-e1592810833331.jpg)
I used the ’empty number line’ method to work out their change. After doing this a few times I became more confident and could then use this method in my own head.
I then extended my shop, adding more items and creating a new price list.
![](https://blogs.glowscotland.org.uk/as/public/methlickspring/uploads/sites/2993/2020/06/22082843/IMG_8047-e1592810931122.jpg)
During this game the customer was allowed to pick a few items. I then had to add them up to see how much the total cost would be. To do this I separated the numbers into tens and units to make the addition part easier to visualise. Again, this process became easier in my head after practising on paper first.
![](https://blogs.glowscotland.org.uk/as/public/methlickspring/uploads/sites/2993/2020/06/22083158/IMG_8048-e1592811127230.jpg)
There are so many strategies we can use to add and subtract. See how many you can use for this task. You might have a favourite method. Let your teacher know it! 😊