Colouring NestNumber Line −20 to 20
- Ages 9–12
- Hard
- 1 page
- Maths chart
- PDF: Letter & A4
Tip: download the PDF for Letter or A4 paper, print it at 100% and use a pencil or crayon.
Up nextFraction Number Lines 0 to 1 →Three number lines from −20 to 20, with a tick for every whole number and a label every five. The wider range suits upper primary maths: finding the difference between −12 and 7, working out temperature changes and checking answers to integer problems.
Also try: Hundreds Chart 1–100 · Double Ten Frames · Multiplication Chart 1–10
Number line activities
- Count on: start at a number and make jumps to the right. Count back: jump to the left.
- Ask “which number is halfway between?” for two numbers on the −20 to 20 line.
- Draw the jumps as little arcs above the line so the working shows.
- Pick two numbers on the line and count the jumps between them: that is the difference.
More to print: the other number lines, ten frames for counting to 20, and the hundreds chart.
For teachers and parents
- What it practises
- Counting on and back, adding and subtracting with jumps, ordering numbers
- How to use it
- Cut the strips apart for the desk. Put a finger or counter on a number and jump right to add, left to subtract.
- Time
- About 5–15 minutes
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Printing tips
- Cut along the dashed lines to make desk strips, and tape them to the table so they don’t slide.
- Use a paper clip or a counter as a marker to jump along the line.