Mr Burrows demonstrating how we use column addition at St. Thomas'. Pay attention to where he places digits and why.
St. Thomas Subtraction
Mr Burrows demonstrating how we perform column subtraction at St. Thomas'. Please pay attention to where he places his digits.
Bar ModelThis is an excellent way of helping you visualise problems and then understand what you need to do. Work through the addition and subtraction problems by building the bar model and then performing the calculations. Remember, the maths calculations aren't very tricky - it's the understanding of what to do that people find hard.