Addition and subtraction of two 2-digit numbers
Why this, why now
In this unit pupils apply their knowledge of known facts and understanding of place value to add and subtract with 2-digit numbers both within and across the tens boundary.
Prior knowledge requirements
- Ardaydu waa inay yaqaanaan aasaaska maadada.
- Ardaydu waa inay awoodaan inay raacaan tilmaamo fudud.
Unit 13 / 19
Addition and subtraction of two 2-digit numbers
In this unit pupils apply their knowledge of known facts and understanding of place value to add and subtract with 2-digit numbers both within and across the tens boundary.
15 lessons- Explain different strategies used to subtract
- Use efficient addition strategies to calculate
- Combine tens and ones within equations
- Add 2-digit numbers when crossing the tens boundary
- Add two-digit numbers without crossing the tens boundary
- Use efficient methods to solve subtraction equations
- Solve equations involving the subtraction of two-digit numbers
- Solve problems involving the addition of two-digit numbers
- Find the missing part when subtracting two-digit numbers
- Subtract two-digit numbers crossing the tens boundary
- Solve problems involving subtraction when bridging 10
- Solve problems involving subtraction of two-digit numbers
- Find the missing addend when adding two-digit numbers
- Create addition and subtraction problems
- Solve problems involving addition and subtraction