Column subtraction
Unit 7 – 1 week
Primary
KS2
Year 3
Curriculum
The PowerPoint file contains slides you can use in the classroom to support each of the learning outcomes for this unit, listed below.
The slides are comprehensively linked to associated pedagogical guidance in the NCETM Primary Mastery Professional Development materials. There are also links to the ready-to-progress criteria detailed in the DfE Primary Mathematics Guidance 2020.
Learning outcomes
| # | Title |
|---|---|
| 1 | Pupils identify the minuend and the subtrahend in column subtraction |
| 2 | Pupils explain the column subtraction algorithm |
| 3 | Pupils subtract from a 2-digit number using column subtraction with exchanging from tens to ones |
| 4 | Pupils subtract from a 3-digit number using column subtraction with exchanging from hundreds to tens (1) |
| 5 | Pupils subtract from a 3-digit number using column subtraction with exchanging from hundreds to tens (2) |
| 6 | Pupils evaluate the efficiency of strategies for subtraction |