Mar 162017
We looked at sum and difference problems like this one:
I buy a book and a pen. In total, they cost me £5. The book was £4 more expensive than the pen. How much did each cost?
We did some more examples and came up with a general method of doing any question like it. Then we looked at how we could program a computer to do it for us…
Here’s the link to see the code: https://scratch.mit.edu/projects/150578027/