Lesson: Subtraction of Tens Using Number Lines

In this lesson, we will learn how to model jumps of ten on a number line to subtract tens numbers from two-digit numbers.

Sample Question Videos

Q1:

Subtract 30 from 78. Use the number line to help you.

Q2:

You can use a number line to subtract.

Take away ones by counting back in ones.

Take away tens by counting back in tens.

Use number lines to find these differences.

Q3:

Find the missing number.

Q4:

Sarah is subtracting on a number line.

Pick the calculation she is working on.

What is the answer?

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