Adding and Subtracting on a Number Line Worksheet
This adding and subtracting on a number line worksheet has 2nd grade students find the value of shapes on four number lines, then add and subtract within 100. Answer key included.
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About this resource
Description
How to Teach Adding and Subtracting on a Number Line
This adding and subtracting on a number line worksheet helps 2nd grade students read a number line and use it to solve problems. Children find the number that sits under each shape, even when the mark has no printed number, by counting by fives and tens. Then they use those numbers to add and subtract within 100. An answer key is included.
How to Use the Worksheet
Students look at the four number lines, one at a time. Each line has three shapes on it. First they find the value of each shape, such as the star at 70 or the circle at 45. Then they solve one subtraction problem and one addition problem that use those shapes, and write the answer on the line. Lines that start at 20 or stop at 50 make students read the scale with care. This number line addition and subtraction practice fits math centers, homework, small groups, or a quick check after a lesson.
What’s Included
- One worksheet with four number lines that count by fives and tens
- Twelve shapes to place on the number lines
- Eight problems: four subtraction and four addition within 100
- A full answer key
Why This Worksheet Helps Kids
- Reading unlabeled marks builds skip counting and number sense.
- Using a number line gives students a picture of what adding and subtracting mean.
- Mixed problems help students choose the right operation and check their work.
Ideas for Teachers and Parents
Ask students to draw the hops on each number line to show how they solved a problem. For more challenge, have them make a new shape problem for a partner. Use the adding and subtracting on a number line worksheet again as a warm-up before a lesson on mental math.
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