Line plots in Grade 3 give students a clear, visual way to show measurement data on a number line. Following CCSS 3.MD.4, learners gather data such as pencil lengths, plant heights, or shoe sizes, then mark one X above the matching number on a horizontal scale to record each measurement. Stacking Xs above each value creates columns that make it easy to see which measurement happened most often, which happened least, and how the data spreads out across the scale. Grade 3 line plots use both whole-number and half-unit measurements, so students practice plotting values like 3 inches, 3.5 inches, and 4 inches in equal-spaced steps. Once a line plot is built, Grade 3 students learn to read it by counting Xs in a single column, comparing two columns to see how many more or fewer fall in each, and adding all the Xs to find the total number of items measured. They identify the mode as the value with the tallest stack, find the range from least to greatest, and answer multi-step word problems. Building a line plot from a raw list of data also helps students organize information neatly and double-check their work.
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Browse all 12 printable worksheets below — click any card to open the full page.
Easy 
Line Plots
Part A: Fix the Sentence
Each sentence has an error. Rewrite it correctly on the line.
Part B: Fill in the Blank
Write the missing word or number on each line.
1. A line plot in Grade 3 shows data using
2. Each X on a Grade 3 line plot equals
3. The horizontal line at the bottom of a Grade 3 line plot is called the
4. The value with the tallest stack of Xs is the
Part C: True or False?
Read each statement. Circle True or False.
1. On a Grade 3 line plot, you can put the same number of Xs above two different values.
T F
2. A line plot in Grade 3 must always start its scale at zero.
T F
3. A value with no Xs above it on a Grade 3 line plot was measured zero times.
T F
Line Plots
Easy
Line Plots
Part A: Fix the Sentence
Each sentence has an error. Rewrite it correctly on the line.
Part B: Fill in the Blank
Write the missing word or number on each line.
1. A Grade 3 line plot has 4 Xs above 1 pet, so
2. On a Grade 3 books-read line plot, 0 Xs above 5 books means
3. If a Grade 3 line plot shows 2 Xs above 0 siblings,
4. On a Grade 3 line plot, the column above 4 has the tallest stack, so 4 is the
Part C: True or False?
Read each statement. Circle True or False.
1. A Grade 3 line plot of pets with 3 Xs above 0 means 3 students have no pets.
T F
2. On a Grade 3 line plot, you should count Xs by adding the numbers below them.
T F
3. If a Grade 3 line plot has 6 total Xs, then 6 students were surveyed.
T F
Line Plots
Easy
Line Plots
Part A: Fix the Sentence
Each sentence has an error. Rewrite it correctly on the line.
Part B: Fill in the Blank
Write the missing word or number on each line.
1. On a Grade 3 line plot of siblings, 4 students have 2 siblings, so there are
2. A Grade 3 line plot shows books read: 3, 3, 5, 5, 5, 7. The mode is
3. Plant heights in cm on a Grade 3 line plot: 8, 8, 9, 10, 10, 10. The total number of plants is
4. On a Grade 3 line plot, 2 students have 0 siblings and 5 students have 1 sibling. There are
Part C: True or False?
Read each statement. Circle True or False.
1. On a Grade 3 line plot, each X mark represents one data value.
T F
2. On a Grade 3 line plot of plant heights, the tallest stack of X marks shows the least common height.
T F
3. A Grade 3 line plot must have a number line as its scale.
T F
Line Plots
Easy
Line Plots
Part A: Fix the Sentence
Each sentence has an error. Rewrite it correctly on the line.
Part B: Fill in the Blank
Write the missing word or number on each line.
1. On a Grade 3 line plot of pencil lengths, 3 pencils are 4.5 inches, so there are
2. A Grade 3 line plot shows pencils: 4, 4.5, 4.5, 5, 5, 5, 5.5, 6. The total number of pencils is
3. On a Grade 3 half-inch line plot, the lengths 5, 5, 5, 5 mean the mode is
4. On a Grade 3 line plot, 2 pencils are 4 inches and 4 pencils are 4.5 inches. There are
Part C: True or False?
Read each statement. Circle True or False.
1. On a Grade 3 half-inch line plot, the scale can include 4, 4.5, 5, 5.5, and 6.
T F
2. On a Grade 3 line plot, a 5.5 inch pencil should be marked above 5.
T F
3. Each pencil measured to the nearest half inch gets its own X mark on a Grade 3 line plot.
T F
Line Plots
Medium
Line Plots
Part A: Fill in the Blank
Write the missing word or number on each line.
1. A Grade 3 line plot has 5 Xs above 2 and 3 Xs above 4. There are
2. A Grade 3 line plot shows 2, 4, 3, and 1 Xs above values 1, 2, 3, and 4. The total surveyed is
3. If the tallest stack on a Grade 3 line plot is above 3 books, the mode is
4. A Grade 3 line plot has 6 Xs total and 4 are above 0 pets. Then
5. A Grade 3 line plot shows 1 X above 0, 3 Xs above 1, and 2 Xs above 2. The least common value is
6. On a Grade 3 line plot, 4 students had 2 books and 4 students had 5 books. So 2 and 5 are
7. A Grade 3 line plot has 7 Xs. After 3 more students answer, the new total is
8. A Grade 3 line plot shows 8 Xs above 1 pet and 5 Xs above 0 pets. So
9. If a Grade 3 line plot has values 0 to 5 and only 2 has zero Xs, the range still goes from 0 to
Part B: Matching
Match each item on the left to the correct answer on the right.
1. Match each item to its correct answer.
Tallest stack of Xs on a Grade 3 line plot
→
Mode of the data
Total students on a Grade 3 line plot
→
Sum of all Xs
Each X on a Grade 3 line plot
→
One data point
Column with zero Xs on a Grade 3 line plot
→
No students with that value
Line Plots
Medium
Line Plots
Part A: Fill in the Blank
Write the missing word or number on each line.
1. A Grade 3 line plot of teeth lost shows 2, 5, 4, 1 Xs above 0, 1, 2, 3. The mode is
2. A Grade 3 line plot has 3 Xs above 2 cousins and 7 Xs above 4 cousins. There are
3. A Grade 3 line plot shows 1, 1, 1, 1 Xs above 0, 1, 2, 3 hours. The total surveyed is
4. If a Grade 3 line plot of pets shows 0 Xs above 5 pets, then
5. A Grade 3 line plot has Xs above 1, 2, and 3 only. The range of values is from 1 to
6. On a Grade 3 line plot, if 9 students were surveyed and 4 chose 2 hours, then
7. A Grade 3 line plot shows 6 Xs above 1 sibling and 6 Xs above 2 siblings, so 1 and 2 are
8. If a Grade 3 line plot has 12 total Xs and 3 columns with 4 Xs each, the line plot shows
9. A Grade 3 line plot of minutes has 2 Xs above 5 and 5 Xs above 10. There are
Part B: Matching
Match each item on the left to the correct answer on the right.
1. Match each item to its correct answer.
Two columns with equal tallest Xs on a Grade 3 line plot
→
Two modes
Difference between two columns on a Grade 3 line plot
→
How many more or fewer
Empty column on a Grade 3 line plot
→
Zero data points there
Sum of every column on a Grade 3 line plot
→
Total students surveyed
Line Plots
Medium
Line Plots
Part A: Fill in the Blank
Write the missing word or number on each line.
1. Data list for a Grade 3 line plot: 1, 2, 2, 3, 3, 3, 4. Above 3 there should be
2. Data list: 5, 6, 6, 6, 7, 7, 8. The Grade 3 line plot has
3. Data list: 2, 2, 4, 4, 4, 4, 5. The Grade 3 line plot has
4. Data list: 0, 1, 1, 2, 2, 2, 3. The total X marks on the Grade 3 line plot is
5. Data list: 10, 10, 11, 12, 12, 12, 13. The mode of the Grade 3 line plot is
6. Data list: 3, 3, 3, 5, 5, 7. The Grade 3 line plot has
7. Data list: 1, 1, 1, 1, 2, 2, 3. The Grade 3 line plot has
8. Data list: 6, 7, 7, 8, 8, 8, 9, 9. The total X marks on the Grade 3 line plot is
9. Data list: 2, 4, 4, 4, 6, 6, 8. The mode of the Grade 3 line plot is
Part B: Matching
Match each item on the left to the correct answer on the right.
1. Match each item to its correct answer.
Data list 1, 2, 2, 3, 3, 3 — X marks above 3
→
3
Data list 5, 5, 6, 6, 6, 6 — X marks above 6
→
4
Data list 0, 0, 1, 2, 2 — total X marks
→
5
Data list 4, 4, 4, 4, 4, 7, 7 — mode value
→
Mode is 4
Line Plots
Medium
Line Plots
Part A: Fill in the Blank
Write the missing word or number on each line.
1. A Grade 3 line plot shows: 2 X above 3, 5 X above 4, 1 X above 5. There are
2. A Grade 3 line plot shows 3 X above 6 and 7 X above 8. The difference in X marks is
3. A Grade 3 line plot has 4 X above 2, 4 X above 3, and 2 X above 4. The total number of X marks is
4. A Grade 3 line plot has 6 X above 7 and 2 X above 9. There are
5. On a Grade 3 line plot with 3 X above 5, 5 X above 6, and 4 X above 7, the value with the most data is
6. A Grade 3 line plot shows 8 X above 10 and 3 X above 12. The difference is
7. A Grade 3 line plot has 2 X above 1, 4 X above 2, 4 X above 3, 2 X above 4. Total X marks
8. A Grade 3 line plot has 1 X above 0 and 6 X above 2. There are
9. A Grade 3 line plot shows 3 X above 4, 3 X above 5, 3 X above 6. The total X marks is
Part B: Matching
Match each item on the left to the correct answer on the right.
1. Match each item to its correct answer.
5 X above 3 and 2 X above 4 — difference
→
3
4 X above 6 and 4 X above 7 — total
→
8
7 X above 9 and 1 X above 10 — fewer X above 10
→
6
3 X above 2, 5 X above 3, 2 X above 4 — total X marks
→
10
Line Plots
Hard
Line Plots
Part A: Multiple Choice
Circle the best answer for each question.
1. A Grade 3 line plot of pencil lengths shows 2 Xs above 3 in, 3 above 3.5 in, 1 above 4 in. How many pencils in all?
2. On a Grade 3 line plot of leaf widths, 4 Xs are above 2.5 cm and 1 X is above 2 cm. How many more leaves are 2.5 cm than 2 cm?
3. A Grade 3 line plot of crayon lengths uses Xs at 3, 3.5, 4, and 4.5 in. The mode is the value with the tallest stack. Which scale step is used between marks?
4. A Grade 3 line plot uses values from 4 in to 5.5 in. What is the range of measurements shown?
Part B: Fill in the Blank
Write the correct answer on each line.
1. A Grade 3 line plot uses inches from 2 in to 4 in by halves. The scale shows 2, 2.5, 3, 3.5,
2. If a Grade 3 line plot has 2 Xs at 3 in, 4 Xs at 3.5 in, and 2 Xs at 4 in, the mode is
3. A Grade 3 line plot of ribbons shows 5 Xs above 4.5 in. So
4. Tom measured pencils: 3, 3.5, 3.5, 4. To plot, he draws
5. A Grade 3 line plot has 1 X each at 2, 2.5, 3, and 3.5 in. The total ribbons measured is
Line Plots
Hard
Line Plots
Part A: Multiple Choice
Circle the best answer for each question.
1. A Grade 3 student lists shoe lengths: 7, 7.5, 7.5, 8, 8, 8. After plotting, which value is the mode?
2. A Grade 3 line plot uses 0.5-inch steps from 5 in to 7 in. How many labeled marks are on the scale?
3. A Grade 3 line plot of bean plant heights shows 3 Xs at 4 in, 5 Xs at 4.5 in, 2 Xs at 5 in. How many plants in total?
4. On a Grade 3 line plot of pencils from 3 in to 6 in, what is the range of pencil lengths?
Part B: Fill in the Blank
Write the correct answer on each line.
1. Sam measured worms: 2.5, 3, 3, 3.5. He puts
2. A Grade 3 line plot of crayons has 4 Xs above 3 in and 6 Xs above 3.5 in, so
3. A Grade 3 line plot has Xs above 2, 2.5, 3, and 3.5 in. The smallest value, 2 in, is the
4. If a Grade 3 line plot shows 6 total Xs and one column with 6 Xs, then only
5. A Grade 3 line plot has 3 Xs at 5 in, 1 X at 5.5 in, 4 Xs at 6 in. The most common length is
Line Plots
Hard
Line Plots
Part A: Multiple Choice
Circle the best answer for each question.
1. Sarah measured 12 leaves for a Grade 3 line plot: 3, 4, 4, 4, 5, 5, 5, 5, 6, 6, 7, 7. What is the mode?
2. On a Grade 3 line plot of books read, 3 students read 2 books, 6 read 3 books, and 2 read 4 books. How many students total?
3. A Grade 3 line plot of plant heights in cm shows 1 X above 8, 4 X above 9, 3 X above 10, 2 X above 11. How many plants?
4. Sarah's Grade 3 leaf line plot ranges from 3 cm to 7 cm. What is the range of the data?
Part B: Fill in the Blank
Write the correct answer on each line.
1. Sarah's 12-leaf Grade 3 line plot shows 4 X above 5 cm. So
2. On a Grade 3 line plot of books, 3 students read 2 books and 6 students read 3 books. There are
3. A Grade 3 line plot of plant heights has 4 X above 9 cm and 3 X above 10 cm. The total at 9 and 10 cm is
4. Sarah's Grade 3 leaf line plot has its tallest stack above 5 cm. So 5 cm is the
5. Sarah's Grade 3 leaves range from 3 cm to 7 cm. The range is
Line Plots
Hard
Line Plots
Part A: Multiple Choice
Circle the best answer for each question.
1. A Grade 3 half-inch line plot of ribbons: 3, 3.5, 3.5, 4, 4, 4, 4.5, 5. What is the range?
2. A Grade 3 half-inch line plot of crayons shows 2 X above 3, 5 X above 3.5, 3 X above 4, 1 X above 4.5. Total measurements?
3. On the Grade 3 crayon line plot, the tallest stack sits above 3.5 inches. What is the mode?
4. A Grade 3 half-inch line plot has values from 4.5 to 6.5 inches. What is the range in inches?
Part B: Fill in the Blank
Write the correct answer on each line.
1. A Grade 3 half-inch ribbon line plot has 5 X above 3.5 inches. The number of ribbons at 3.5 inches is
2. Grade 3 crayon line plot: 2 X above 3, 5 X above 3.5, 3 X above 4, 1 X above 4.5. The total crayons measured is
3. A Grade 3 half-inch line plot has values from 4 to 5.5 inches. The range is
4. Grade 3 ribbon line plot: 1 X above 3, 4 X above 3.5, 2 X above 4. The mode is
5. Grade 3 line plot at 3.5 has 5 X marks and at 4 has 3 X marks. There are
Line Plots
What's Included in This Download
12 Printable Pages covering line plots
Complete Answer Key for easy grading
Printer-Friendly Format in black & white
Variety of Activities to keep kids engaged
Common Core Aligned grade 3 standards
Instant PDF Download - no signup required
What You'll Learn
These line plots worksheets help grade 3 students develop essential math skills through engaging activities.
How to Use These Worksheets
- Download & Print: Click the download button to get the PDF. Print on standard 8.5" x 11" paper.
- Start Simple: Begin with easier pages before moving to more challenging activities.
- Daily Practice: Dedicate 10-15 minutes each day for consistent learning.
- Use Manipulatives: Pair worksheets with physical objects like blocks or counters.
- Provide Encouragement: Celebrate progress and effort to build confidence.
- Check Progress: Use the included answer key to review work together.
Common Mistakes to Watch For
- Grade 3 students sometimes count the scale numbers instead of the Xs above them, which gives the wrong total.
- Grade 3 learners often forget that each X stands for exactly one data point, leading them to double-count or undercount.
- Grade 3 students may skip half-unit marks like 3.5 or 4.5, putting Xs in the wrong column on the line plot.
Frequently Asked Questions
What is a line plot?
A Grade 3 line plot is a graph that shows data with X marks above each value on a number line. Each X equals one data point, and stacked Xs make it easy to compare how often each measurement happened.
How do Grade 3 students count data on a line plot?
Grade 3 students count the Xs above a number on the scale, not the scale number itself. The number of Xs in a column shows how many data points had that exact value, such as how many pencils measured 3 inches.
What does the mode mean on a Grade 3 line plot?
The mode is the value with the tallest stack of Xs on the line plot. In Grade 3, that means the measurement that happened most often. If two columns are equally tall, both values are modes of the data.
Why do Grade 3 line plots use half-unit marks?
CCSS 3.MD.4 has Grade 3 students measure to the nearest half inch, so line plots include half-unit marks like 3.5 or 4.5. This lets students plot real measurements that fall between whole inches accurately on the scale.
How can Grade 3 students find totals on a line plot?
To find the total number of items measured, Grade 3 students add the X counts across every column. The full total equals the sum of all Xs, which is also the number of data points or people surveyed for the line plot.
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Can I use these in my classroom?
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