Worksheets · Algebra 1

Stem-and-leaf plot worksheet for Algebra 1

Algebra 1 reads stem-and-leaf plots as data already in order and uses them for the usual measures: median, mode, range and interquartile range, plus counting how many values fall above or below a cutoff. Every leaf is one value, repeats included.

Also taught in Pre-Algebra and Statistics, each at its own level and with its own examples.

Select your difficulty

Pick more than one for a sheet that mixes them.

The preview can look cramped on a phone. The PDF and printed sheet come out normal.

Free math worksheets at sigmaprep.io/worksheets© 2026 Sigma Prep

Sigma Prep · sigmaprep.io/worksheets

Name

Stem-and-Leaf Plots

Date Period

Use the stem-and-leaf plot to answer each question.

  1. Count values in a stem-and-leaf plot

    How many values are greater than 61?StemLeaf25    730    4    741    4    6    951    3    9    961    3Key: 2 ∣ 3=23
  2. How many values are less than 38?StemLeaf2735    5    6    8    840    1    65661    1    4    5    5    6Key: 2 ∣ 1=21
  3. How many values are greater than 58?StemLeaf33    4    646    852    2    4    8    865    870Key: 7 ∣ 3=73
  4. How many values are less than 43?StemLeaf21    6    637    943    4    850    1    4    865    6    9Key: 2 ∣ 8=28
  1. Find the median from a stem-and-leaf plot

    Find the median.StemLeaf10    2    2    4    6    921    732    3    64150    7    8    9Key: 5 ∣ 0=50
  2. Find the median.StemLeaf22    2    530    84953    3    4    4    962    4Key: 2 ∣ 8=28
  3. Find the median.StemLeaf15    7    927    933    3    6    8    941    1    351    5    6Key: 1 ∣ 7=17
  4. Find the median.StemLeaf10    0    5    6    7    820    230    1    543    5    6    656Key: 4 ∣ 5=45
  1. Find the mode from a stem-and-leaf plot

    Find the mode.StemLeaf31    2    3    9452    662    3    5    871    1    2    5    7    9Key: 3 ∣ 8=38
  2. Find the mode.StemLeaf21    7    831    8    841    553    562    6Key: 2 ∣ 6=26
  3. Find the mode.StemLeaf20    1    4    5    938    943    3    65265    7Key: 2 ∣ 7=27
  1. Find the range from a stem-and-leaf plot

    Find the range.StemLeaf2030    5    741    1    252    963    5    5    6    7Key: 2 ∣ 6=26
  2. Find the range.StemLeaf10    1    52133    4    6    740    2    8    8    9Key: 2 ∣ 3=23
  3. Find the range.StemLeaf33    4    8451    5    669    9    970    2    2    2    7Key: 3 ∣ 1=31
  1. Compare back-to-back stem-and-leaf plots

    The back-to-back plot shows points scored. Which team has the greater median?Team AStemTeam B547    6    5    3    3    1    055    79    8    162    3    974    6    7    880    4Key: 2 ∣ 4 ∣ 5 means 42 for Team A and 45 for Team B
  2. The back-to-back plot shows points scored. Which team has the greater median?Team AStemTeam B9    727    2389    7    7    6    141    2    4    6    8    92    051    5    7    8Key: 2 ∣ 2 ∣ 5 means 22 for Team A and 25 for Team B
  3. The back-to-back plot shows points scored. Which team has the greater median?Team AStemTeam B8    8    546    9    99    6    5    0    0507    663    4    4    5    5    7172Key: 2 ∣ 4 ∣ 5 means 42 for Team A and 45 for Team B
  1. Find the IQR from a stem-and-leaf plot

    Find the interquartile range. For quartiles, split the data at the median, and leave the median out of both halves when the count is odd.StemLeaf41    4    4    7560    3    3    5    977    9Key: 4 ∣ 3=43
  2. Find the interquartile range. For quartiles, split the data at the median, and leave the median out of both halves when the count is odd.StemLeaf40    2    3    4    550    1672    3    5    8Key: 4 ∣ 3=43
  3. Find the interquartile range. For quartiles, split the data at the median, and leave the median out of both halves when the count is odd.StemLeaf4350    1    8    960    3    874    7Key: 4 ∣ 3=43

Free math worksheets at sigmaprep.io/worksheets© 2026 Sigma Prep

Sigma Prep · sigmaprep.io/worksheets

Name

Stem-and-Leaf PlotsAnswer keyVersion 2

Date Period

Use the stem-and-leaf plot to answer each question.

  1. Count values in a stem-and-leaf plot

    How many values are greater than 61?StemLeaf25    730    4    741    4    6    951    3    9    961    3Key: 2 ∣ 3=231
  2. How many values are less than 38?StemLeaf2735    5    6    8    840    1    65661    1    4    5    5    6Key: 2 ∣ 1=214
  3. How many values are greater than 58?StemLeaf33    4    646    852    2    4    8    865    870Key: 7 ∣ 3=733
  4. How many values are less than 43?StemLeaf21    6    637    943    4    850    1    4    865    6    9Key: 2 ∣ 8=285
  1. Find the median from a stem-and-leaf plot

    Find the median.StemLeaf10    2    2    4    6    921    732    3    64150    7    8    9Key: 5 ∣ 0=5029.5
  2. Find the median.StemLeaf22    2    530    84953    3    4    4    962    4Key: 2 ∣ 8=2853
  3. Find the median.StemLeaf15    7    927    933    3    6    8    941    1    351    5    6Key: 1 ∣ 7=1737
  4. Find the median.StemLeaf10    0    5    6    7    820    230    1    543    5    6    656Key: 4 ∣ 5=4526
  1. Find the mode from a stem-and-leaf plot

    Find the mode.StemLeaf31    2    3    9452    662    3    5    871    1    2    5    7    9Key: 3 ∣ 8=3871
  2. Find the mode.StemLeaf21    7    831    8    841    553    562    6Key: 2 ∣ 6=2638
  3. Find the mode.StemLeaf20    1    4    5    938    943    3    65265    7Key: 2 ∣ 7=2743
  1. Find the range from a stem-and-leaf plot

    Find the range.StemLeaf2030    5    741    1    252    963    5    5    6    7Key: 2 ∣ 6=2647
  2. Find the range.StemLeaf10    1    52133    4    6    740    2    8    8    9Key: 2 ∣ 3=2339
  3. Find the range.StemLeaf33    4    8451    5    669    9    970    2    2    2    7Key: 3 ∣ 1=3144
  1. Compare back-to-back stem-and-leaf plots

    The back-to-back plot shows points scored. Which team has the greater median?Team AStemTeam B547    6    5    3    3    1    055    79    8    162    3    974    6    7    880    4Key: 2 ∣ 4 ∣ 5 means 42 for Team A and 45 for Team BTeam B: median 74 vs 55
  2. The back-to-back plot shows points scored. Which team has the greater median?Team AStemTeam B9    727    2389    7    7    6    141    2    4    6    8    92    051    5    7    8Key: 2 ∣ 2 ∣ 5 means 22 for Team A and 25 for Team BTeam B: median 48 vs 46
  3. The back-to-back plot shows points scored. Which team has the greater median?Team AStemTeam B8    8    546    9    99    6    5    0    0507    663    4    4    5    5    7172Key: 2 ∣ 4 ∣ 5 means 42 for Team A and 45 for Team BTeam B: median 64 vs 55
  1. Find the IQR from a stem-and-leaf plot

    Find the interquartile range. For quartiles, split the data at the median, and leave the median out of both halves when the count is odd.StemLeaf41    4    4    7560    3    3    5    977    9Key: 4 ∣ 3=4325
  2. Find the interquartile range. For quartiles, split the data at the median, and leave the median out of both halves when the count is odd.StemLeaf40    2    3    4    550    1672    3    5    8Key: 4 ∣ 3=4330
  3. Find the interquartile range. For quartiles, split the data at the median, and leave the median out of both halves when the count is odd.StemLeaf4350    1    8    960    3    874    7Key: 4 ∣ 3=4317

Free math worksheets at sigmaprep.io/worksheets© 2026 Sigma Prep

How to do these

Find the median:
1 ∣ 2  52 ∣ 0  3  83 ∣ 4

  1. The values, already in order, are 12, 15, 20, 23, 28 and 34.
  2. With 6 values the median is halfway between the 3rd and 4th: 20 and 23.
  3. (20 + 23) ÷ 2 = 21.5.

The answer is 21.5.

Where students go wrong

Counting a repeated leaf only once. A row 7 | 2 2 2 holds three values of 72, which changes the mode, the mean and the count.

Also called stem and leaf, stem and leaf plot, stem-and-leaf diagram or reading a stem and leaf plot.

What you can put on this worksheet

Count the values above, below or between
How many values are greater than 59?
StemLeaf33    3    943    952    2    963    8    9 Key: 4 ∣ 6=46
→ 3
The median
Find the median.
StemLeaf33    3    943    952    2    963    8    9 Key: 4 ∣ 6=46
→ 52
The mode
Find the mode.
StemLeaf30    8    94556    6    660    2    5    5    6 Key: 3 ∣ 1=31
→ 56
The range
Find the range.
StemLeaf33    3    943    952    2    963    8    9 Key: 4 ∣ 6=46
→ 36
The mean
Find the mean.
StemLeaf50    2    4    8670    3    3    4    8    8 Key: 5 ∣ 2=52
→ 66
Make a stem-and-leaf plot from data
Make a stem-and-leaf plot of the data: 56, 61, 42, 69, 69, 56, 54, 50, 47, 65, 42 → StemLeaf42    2    750    4    6    661    5    9    9
A 0 stem, or data to round first
Make a stem-and-leaf plot of the data: 64, 68, 52, 88, 56, 82, 67, 88, 44, 71, 60 → StemLeaf4452    660    4    7    87182    8    8Key: 8∣8=88
Back-to-back plots
The back-to-back plot shows points scored. Which team has the greater median?
Team AStemTeam B7379    5    247    76    153    3    74    061    4
Key: 2 ∣ 3 ∣ 5 means 32 for Team A and 35 for Team B
→ Team B: median 53 vs 50
The interquartile range
Find the interquartile range. For quartiles, split the data at the median, and leave the median out of both halves when the count is odd.
StemLeaf43    953    962    2    973    8 Key: 4 ∣ 3=43
→ 20
A key in hundreds
Find the range.
StemLeaf3442    3    950    5    6    966    7 Key: 3∣8=3800
→ 3300
Large numbers, rounded first
Round each value to the nearest ten thousand, then make a stem-and-leaf plot
with hundred-thousands as stems.
536,361;  556,240;  690,964;  180,433;
496,545;  559,462;  307,665;  875,926.
→ StemLeaf18231450    4    6    669788Key: 2∣4=240,000

Questions about these worksheets

Yes. Every stem-and-leaf plot sheet is free to print and free to download as a PDF. There is no account to make, no email to hand over and no limit on how many you take.

Yes. The answer key prints on a second page, and you can choose whether it shows each question beside its answer or just the answers in a list.

Yes. Print straight from the page, or download the PDF and print that. The sheet is laid out for paper rather than squeezed off a screen, so there is room to work under each question, and the answer key comes out on its own page.

Algebra 1 is usually taken around 8th or 9th grade, though schools vary and plenty of students meet it earlier or later. Pick the difficulty rather than the grade: the easy level suits a first lesson on it, the hard level suits review before a test.

Yes, as many as you like. The questions are built fresh each time rather than picked from a fixed set of files, so pressing Generate gives a new sheet. That is what you want for a second class, a retake, or two students sitting next to each other.

That is the closest comparison, and Kuta Software is good software. It is also paid software you install on a computer. These worksheets run in a browser tab for free, with no account and nothing to install. Like Kuta, the stem-and-leaf plot questions are generated when you ask for them rather than pulled from a fixed set of files, so two classes never get the same sheet, and the answer key comes with it.

Yes. There are three levels, and you can tick more than one for a sheet that mixes them, in which case the questions come out easiest first. The harder levels are not just larger numbers: they ask for something the easy ones do not.

You pick from 11: count the values above, below or between, the median, the mode, the range, the mean, make a stem-and-leaf plot from data, a 0 stem, or data to round first, back-to-back plots, the interquartile range, a key in hundreds and large numbers, rounded first. Tick as many as you want and set how many of each, or let it spread them evenly.

Skipping a stem with no leaves, or reading the leaves as whole values. A leaf of 5 on the stem 3 is 35, not 5, and an empty stem means no data landed there, not that the row does not exist.