What are number line jumps?

Each problem, like 7 + 4, comes with a number line. Children start at the green dot, draw one jump for each one they add or take away, and write where they land.

Which ranges are there?

0 to 10, up to 20, and tens up to 100.

Are answer keys included?

Yes. The key draws the jumps and the answer.

Number Line Worksheets: Missing Numbers and Addition Jumps to 20 and 100

Seeing addition and subtraction

A number line shows adding as moving forward and taking away as moving back. It is the bridge from counting objects to mental maths.

Curriculum links in England

Year 1Pupils represent numbers with objects and pictures, including the number line, and find one more and one less.
Year 2Numbers are represented and estimated in different ways, including on a number line.
Adding tensYear 2 pupils add and subtract a two-digit number and ones, and a two-digit number and tens.

Many schools in England use an empty, or blank, number line from Year 2: children draw their own line and jump in tens and ones, so 47 + 25 becomes a jump of 20 and then 5. The marked lines here are the step before that.

The tens-to-100 range fits the Year 2 work on adding tens to a two-digit number. Counting sticks are common in English classrooms too, and counting along one in tens before the sheet makes the jumps feel familiar.

Summarised in our own words from the National Curriculum in England: mathematics programmes of study (DfE).