Numbers: Number Lines
Number lines are a great way to visualise addition and subtraction on paper.
Quick tips for tutors
Number lines include:
- Recognising that number lines may be empty or numbered and that the numbering may be continuous or go up in simple multiples
- Recognising that number lines may be used to add and subtract
- Finding the difference by counting on and counting back
- Matching calculations to diagrams of number lines
- Using a number line to add and subtract whole numbers, and decimals including money
- Finding the difference between positive and negative numbers
- Carrying out time calculations
- Recognising number lines may be marked with fractions or decimal numbers
- Using double number lines to do conversions and find equivalents between fractions, decimals and percentages
- Recognising that number lines can also be used for multiplication by repeated addition or division by repeated subtraction