Step 2 Objective
Use informal pencil and paper methods to support, record or explain HTU ± TU, HTU ± HTU.
- Examples of what pupils should
know and be able to do - Probing questions
- What if pupils find
this a barrier?
Examples of what pupils should know and be able to do

Use jottings to support, record and explain partial mental methods, building on existing mental strategies.
Annotate blank number lines to support these mental calculations.