Addition and subtraction of two-digit numbers (1)
Unit 4 – 2 weeks
Primary
KS1
Year 2
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 add and subtract one to and from a two-digit number |
| 2 | Pupils add and subtract one to and from a two-digit number that crosses a tens boundary |
| 3 | Pupils add and subtract one from any two-digit number |
| 4 | Pupils use number facts to add a single-digit number to a two-digit number |
| 5 | Pupils use number facts to subtract a single-digit number from a two-digit number |
| 6 | Pupils use a part-part-whole model to represent addition and subtraction |
| 7 | Pupils use number bonds to ten to add a single-digit number to a two-digit number |
| 8 | Pupils use number bonds to ten to subtract a single-digit number from a two-digit number |
| 9 | Pupils use knowledge of ‘make ten’ to add a one-digit number to a two-digit number |
| 10 | Pupils use knowledge of ‘make ten’ to subtract a multiple of ten or a single-digit from a two-digit number |
| 11 | Pupils solve problems using knowledge of addition and subtraction |
| 12 | Pupils find ten more or ten less than a two-digit number (1) |
| 13 | Pupils find ten more or ten less than a two-digit number (2) |
| 14 | Pupils add and subtract ten to/from a two-digit number |
| 15 | Pupils explain the patterns when adding and subtracting ten |
| 16 | Pupils use knowledge of adding and subtracting ten to solve problems |
| 17 | Pupils use number facts to add a multiple of ten to a two-digit number |
| 18 | Pupils use number facts to subtract a multiple of ten from a two-digit number |
| 19 | Pupils partition a two-digit number into parts in different ways (two and three parts) |
| 20 | Pupils use knowledge of adding and subtracting multiples of ten to solve problems |