4th Grade Line Plots with Fractions Test with Answer Key (Free PDF)

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This 4th grade line plots test covers line plots with fractions (Common Core 4.MD.B.4), with a free PDF to print.

Key takeaway: This test helps fourth grade students show that they can read and make line plots with fractions and use them to solve problems.

Topic: Line Plots with Fractions (4th grade)
Content: 8 questions with point values, about 45 minutes
Standards: 4.MD.B.4
Answers: On a separate page, so you can try every worksheet problem first
Format: Free printable PDF, US Letter, black and white

This test helps fourth grade students show that they can read and make line plots with fractions and use them to solve problems. Also, it is worth 20 points and takes 45 minutes.

The eight questions begin with reading a plot of pencil lengths, then finding the most common length and the difference between the longest and shortest. Then, later questions ask students to complete a line plot from a list, to use eighths and halves, and to add rainfall data. Also, one question finds a total and how much more is needed, and the last totals two columns of dots. Then, show your work for partial credit.

This test has 8 questions worth 20 points. Allow 45 minutes. Show your work for every question and write the unit with each answer. Write fractions greater than 1 as mixed numbers where it makes sense.

Key takeaway: A printable Grade 4 test on Line Plots with Fractions, built like a unit assessment: time and points, 4th grade line plots test: questions and test-taking strategy. The detailed answer key with scoring is on a separate page; free PDF.

Time and points

About this test

Grade: Grade 4
Chapter: Line Plots with Fractions
Standards: 4.MD.B.4
Time: 45 minutes
Total: 20 points

4th grade line plots test: questions

1 – Reading a line plot [2 pts]

First, the line plot shows the lengths of pencils in inches.

Pencil lengths.

How many pencils were measured? (1 point)
How many pencils are longer than \(\frac{1}{2}\) inch? (1 point)

2 – Longest and shortest [2 pts]

Next, use the line plot in Question 1.

Which length is the most common? (1 point)
How much longer is the longest pencil than the shortest pencil? (1 point)

3 – Make a line plot [2 pts]

Sofia poured 7 glasses of juice (in cups): \(\frac{1}{2}, \frac{1}{4}, \frac{3}{4}, \frac{1}{2}, \frac{1}{4}, \frac{1}{2}, \frac{1}{4}\). Complete the line plot by drawing a dot for each glass.

Blank line plot.

(2 points)

4 – Leaf lengths in eighths [3 pts]

Now, the line plot shows 8 leaves measured in inches.

Leaf lengths.

Find the total length of the leaves that measure \(\frac{3}{8}\) inch. (1 point)
How many leaves are shorter than \(\frac{1}{2}\) inch? (1 point)
How much longer is the longest leaf than the shortest? (1 point)

5 – Plant heights in halves [3 pts]

Also, the line plot shows the heights of 8 plants in feet.

Plant heights.

How many plants are taller than 1 foot? (1 point)
Find the total height of the plants that are \(1\frac{1}{2}\) feet tall. (1 point)
How much taller is the tallest plant than the shortest? (1 point)

Question 6 and after

6 – Rainfall total [3 pts]

Diego measured rain on 6 days, in inches: \(\frac{1}{4}, \frac{1}{2}, \frac{1}{4}, \frac{3}{4}, \frac{1}{2}, \frac{1}{4}\).

Find the total rainfall. (2 points)
How much more rain fell on the rainiest day than on the driest day? (1 point)

7 – Ribbon pieces [3 pts]

Noah cut ribbon pieces for a craft table. The plot shows their lengths in feet.

Ribbon pieces.

Find the total length of all the ribbon. (2 points)
He needs 6 feet in all. How many more feet does he need? (1 point)

8 – Two columns [2 pts]

Then, a line plot has 3 dots at \(\frac{1}{2}\) foot and 2 dots at 1 foot. Find the total of all five measurements. (2 points)

Key facts behind this 4th grade line plots test

Key facts

A line plot shows data above a number line, one dot per measurement.
Next, the tick marks are equally spaced, for example every 1/4 or every 1/8.
A taller stack of dots means that length happened more often.
Then, to find a total, add the length once for every dot.
To find a difference, subtract the shortest length from the longest.

Common mistakes with this 4th grade line plots test

Students leave out a dot for a repeated value. Instead, count the data list and check that the dots on the plot equal the total.
Students include dots at exactly the given mark when the question says taller than. Also, only count dots to the right of that mark.
Students find a total but forget the second part about how much more is needed. Instead, subtract the total from the amount required.
Students add halves and wholes as one kind of unit. Add the fractions and wholes separately, then combine.

Test-taking strategy

Read each question twice and underline words like longer than, at least, or shorter than. Then, these tell you which dots to count.
Write the fraction addition on separate lines for each column, so your work is easy to follow for partial credit.
Parents can help by reviewing a line plot from a school handout the evening before and asking questions about it.

Download the 4th grade line plots test as a PDF with the button below and keep it with your notes.

4th grade line plots test: frequently asked questions

How do I count dots for a statement like longer than one half inch?

Count only the dots to the right of the one half mark. Also, dots at one half exactly are not longer than one half. If you need at least one half, include the dots at one half as well. Read the exact words in each question.

What is the best way to add fractions from a line plot on a test?

Add the totals of each column, writing the fraction and the number of dots. For two dots at one fourth and one dot at one half, the sum is one half plus one half, which is one inch. Show each step.

Do I need a ruler to draw a line plot?

A ruler helps make the tick marks evenly spaced, but it is not required. Spacing the marks the same distance apart is the key. Mark the fraction labels below the line and keep the dots directly above each mark.

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