Lesson: Subtraction with Numbers Up to 20: Counting Back on a Number Line

Learn how to use a number line to subtract within 20 by counting back, and write subtraction sentences describing jumps on a number line.

Worksheet: Subtraction with Numbers Up to 20: Counting Back on a Number Line • 3 Questions

Q1:

Find the number sentence that matches this number line.

Q2:

On this number line, Daniel started at 20 and counted backward until he reached 15.

Which number sentence describes what Daniel did?

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