Step 3 Objective
Extend efficient written methods to column addition/subtraction of two integers less than 10000.
- Examples of what pupils should
know and be able to do - Probing questions
- What if pupils find
this a barrier?
Probing questions
Which of these calculations are correct/incorrect?
What tips would you give to someone to help with column addition/subtraction?
If you are given a sum does it matter if you add the numbers in a different order? What about subtraction?