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.
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.
Free math worksheets at sigmaprep.io/worksheets© 2026 Sigma Prep |
How to do these
Find the median:
- The values, already in order, are 12, 15, 20, 23, 28 and 34.
- With 6 values the median is halfway between the 3rd and 4th: 20 and 23.
- (20 + 23) ÷ 2 = 21.5.
The answer is .
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?
Key: → - The median
- Find the median.
Key: → - The mode
- Find the mode.
Key: → - The range
- Find the range.
Key: → - The mean
- Find the mean.
Key: → - Make a stem-and-leaf plot from data
- Make a stem-and-leaf plot of the data: , , , , , , , , , , →
- A 0 stem, or data to round first
- Make a stem-and-leaf plot of the data: , , , , , , , , , , →
- Back-to-back plots
- The back-to-back plot shows points scored. Which team has the greater median?
Key: means for Team A and for Team B → Team B: median vs - 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.
Key: → - A key in hundreds
- Find the range.
Key: → - Large numbers, rounded first
- Round each value to the nearest ten thousand, then make a stem-and-leaf plot
with hundred-thousands as stems.
; ; ; ;
; ; ; . →