Step 2 Objective
Use known number facts and place value to add or subtract mentally, including any pair of two-digit whole numbers.
- Examples of what pupils should
know and be able to do - Probing questions
- What if pupils find
this a barrier?
Probing questions
Provide a range of calculations that cover the mental strategies taught (see Teaching mental calculation strategies to level 5 page 7 for list).
What strategies would you use to work out the answers to these calculations? Could you use a different method?
How could you check that your answer is correct?