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.

CAPS links

Grade RUses counters and a physical number ladder to solve story sums up to 10.
Grade 1Adds and subtracts on a structured number line that shows every number.
Grade 2Uses both structured and empty number lines, and adds or subtracts multiples of 10 from 0 to 100.

CAPS introduces addition in Grade 1 on a 0 to 10 line, with a rabbit that jumps to 5 and then two more jumps. Children then jump with a finger along their own desk number lines while the teacher calls out number sentences. The jump sheets are the paper version of that lesson.

CAPS insists on a structured line, with every number showing, for early addition and subtraction. The tens to 100 level suits the Grade 2 mental maths of adding and taking away whole tens.

Summarised in our own words from the DBE’s Curriculum and Assessment Policy Statement (CAPS) for Mathematics, Foundation Phase (2011).