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Math · Ages 6–8 · 12 minutes

Addition Within 20: Open Number-Line Jumps

Open number lines make each added amount visible, including a strategic jump to a friendly ten.

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Addition Within 20: Open Number-Line Jumps

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Date:              

Today I am practising: representing addition with jumps on an open number line

1

Start at 6. Draw one jump of 4 and one jump of 3 to solve 6 + 7.

2

Start at 9. Jump 1 to 10, then jump 5 more. Solve 9 + 6.

3

Draw two equal jumps to show 7 + 7.

4

A line starts at 8 and ends at 15. Label a jump plan that reaches the end.

5

Solve 11 + 5 with one jump. Why can you use a single jump here?

6

Create an addition path ending at 18 and write the matching equation.

Grown-up note: Ask your learner to explain one answer in their own words.