Free Halloween Math Worksheets With Answer Keys (PDF and Canva)

Halloween week is a hard week to teach math. The kids are thinking about costumes and candy, and most free Halloween math worksheets online cover a single grade, hide the answer key behind a signup or turn out to be a three-page preview of a paid pack.

This pack fixes that. It has 16 Halloween math worksheets, from counting pumpkins in kindergarten to modeling a zombie outbreak in high school, and every sheet comes with its own answer key. You can download all of it or only the grade you teach, and you don’t need an email address or an account.

What’s in the Pack

The pack is split into four grade bands with four worksheets each. Every worksheet fits on one page, takes about 15 to 25 minutes and has a matching answer key at the back of the PDF, with the answers filled in red.

#	Worksheet	Level	Skill
1	Count the Pumpkins	K-2	Counting to 15
2	Candy Addition	K-2	Addition within 20
3	Spooky Subtraction	K-2	Subtraction within 20
4	Bat Comparisons	K-2	Comparing numbers and skip counting
5	Monster Multiplication	3-5	Multiplication facts to 12 × 12
6	Trick-or-Treat Division	3-5	Division with remainders
7	Pumpkin Pie Fractions	3-5	Fractions of a shape and of a set
8	Haunted House Riddle	3-5	Multi-digit addition and subtraction
9	Graveyard Integers	6-8	Operations with integers
10	Costume Shop Sale	6-8	Percent discounts, tax and percent change
11	Equation Escape Room	6-8	One-step and two-step equations
12	Mystery Picture Plot	6-8	Coordinates in all four quadrants
13	Haunted House Systems	High school	Systems of linear equations
14	Pumpkin Launch	High school	Quadratic functions and the quadratic formula
15	Candy Bag Probability	High school	Probability and expected value
16	Zombie Outbreak	High school	Exponential growth and decay with logarithms

I’d print the answer keys separately and keep them on your desk. Students who finish early can check their own work against them, which saves you a queue at the front of the room.

Halloween Math Worksheets for Kindergarten to Grade 2

The K-2 sheets lean on pictures, because counting real things comes before counting numbers on a page. Kids count pumpkins, bats and ghosts, add candy corn, cross out the ghosts that flew away and compare numbers with bats.

• Count the Pumpkins: nine boxes of pumpkins, bats, ghosts and candy corn to count, from 3 to 14.
• Candy Addition: four picture sums, then 16 addition facts within 20.
• Spooky Subtraction: cross out the ghosts that flew away, then 16 subtraction facts within 20.
• Bat Comparisons: 12 pairs to compare with <, > or =, plus counting by 2s, 5s and 10s.

For kindergarten, I’d do Count the Pumpkins and the picture half of the addition sheet together on the board first. The pictures do the counting until the numbers start to mean something on their own. You can download just the K-2 worksheets (PDF) or edit the K-2 set in Canva.

Halloween Math Worksheets for Grades 3 to 5

Grades 3 to 5 move from facts to word problems. Two of the sheets drill a skill, and the other two turn the answer into something the class wants to find out.

• Monster Multiplication: 40 facts up to 12 × 12, set as a 5-minute challenge.
• Trick-or-Treat Division: eight sharing problems where the leftover candy is the remainder.
• Pumpkin Pie Fractions: name the shaded part of six pies, then find fractions of a group.
• Haunted House Riddle: 13 addition and subtraction problems with 4-digit numbers whose answers spell the punchline to “What room does a ghost always stay out of?”

The remainder is where division usually clicks. A child who has argued over the last piece of candy already understands what “left over” means, and the division sheet gives that feeling a number. Here are the grades 3-5 worksheets on their own (PDF), and you can also edit the grades 3-5 set in Canva.

Halloween Math Worksheets for Grades 6 to 8

The middle school sheets cover the topics that trip students up before algebra: negative numbers, percents, equations and the coordinate plane.

• Graveyard Integers: 20 integer problems across all four operations, plus graveyard temperatures that drop below zero.
• Costume Shop Sale: sale prices, sales tax, percent increase and the trap of 20% off followed by another 10% off.
• Equation Escape Room: 10 one-step and two-step equations whose solutions spell the answer to “What is a vampire’s favorite fruit?”
• Mystery Picture Plot: 25 points across all four quadrants that draw a Halloween picture when connected, then a quadrant check.

Before students start problem 4 on the percent sheet, ask the class whether 20% off and then 10% off is the same as 30% off. Most will say yes. On a $40 mask, 20% off leaves $32, and 10% off that leaves $28.80, which is 28% off in total. The second discount is taken from a smaller price, so it is worth less.

You can also grab only the grades 6-8 worksheets (PDF) or edit the grades 6-8 set in Canva.

Halloween Math Worksheets for High School

The high school sheets put a Halloween story around real algebra and statistics, so the theme carries the problem instead of decorating it.

• Haunted House Systems: ticket sales, potion mixing, a ghost ship sailing against a current and two systems to solve directly.
• Pumpkin Launch: three catapult launches modeled by h(t) = −16t² + vt + h₀, with time to the top, maximum height and landing time.
• Candy Bag Probability: single draws, draws with and without replacement and an expected-value spinner.
• Zombie Outbreak: a zombie count that doubles every 3 hours, solved with logarithms, then compared with linear growth and a fading cure.

The best question in the pack is on the zombie sheet. A town that gains 40 zombies an hour is ahead of the doubling town at 12 hours, 485 to 80, and far behind it at 24 hours, 1,280 to 965. Students watch exponential growth lose and then win, which is the whole lesson in one comparison.

If your students need a refresher first, my study notes on the quadratic formula and exponential functions go with the launch and zombie sheets. Download the high school worksheets (PDF) here, or edit the high school set in Canva.

Edit the Worksheets in Canva

Each grade band is also a Canva template, linked beside its PDF above. Opening one gives you your own copy with 8 pages: the 4 worksheets first and their 4 answer keys after them. The titles, problems and answers are live text, so you can retype them like any Canva text box, and a free Canva account is enough to edit and print. If you don’t use Canva, the PDFs print as they are.

These changes are safe to make without touching the key:

• A class or school name added in a new text box
• Student names in the word problems
• Titles, instructions and the Name and Date line
• Deleting a worksheet you don’t need, along with its key page

Numbers need more care. If you change a number in a problem, its answer changes too, but the answer key won’t update on its own. You have to fix the matching answer on the key page yourself, which sits 4 pages after its worksheet, so sheet 1’s key is page 5.

• On the 2 riddle sheets, a new answer also needs its own entry in the code box, or the letters stop spelling the punchline.
• The pictures on the K-2 counting, addition and subtraction sheets, the fraction pies and the coordinate grid are images. Their counts can’t be retyped, so leave those problems as they are.

It is wise to solve every changed problem once against the key before you print a class set.

How to Use Them in Class

A themed worksheet works best when the theme does a job. These are the ways I’d put the pack to work:

• Keep the riddle and picture sheets for early finishers. Students keep going because they want the punchline.
• Time the multiplication sheet once in October and again in November with the same facts. The improvement is easier to see than a grade.
• Let students check their answers with the key and fix their mistakes in a different color. The corrections tell you more than the score.
• Print in black and white if you need to. The sheets stay readable in grayscale, so copies cost less.
• For Google Classroom or tablets, upload the PDF as an assignment and let students mark it up in a PDF app.

More Halloween Math Activities and Games

Worksheets are one part of the week. These Halloween math games and activities need only things you can find in October:

• Pumpkin estimation: students estimate a pumpkin’s circumference with string, then its weight and its number of seeds, and compare each guess with the real count.
• Candy jar estimate: fill a jar with wrapped candy and have each student explain how they estimated, not only what they guessed.
• Haunted house floor plan: students draw a haunted house on grid paper and find the area and perimeter of every room.
• Probability with a candy bag: draw from a bag 30 times with replacement, tally the results and compare them with the theoretical probability.
• Spooky number bingo: call out problems instead of numbers, and students mark the answer on their card. It works for addition facts in grade 1 and integer operations in grade 7.
• Costume budget: give students $40 and a costume shop price list with discounts, and ask them to build the best costume they can afford.

If you want to keep the theme going in science class, my Halloween science experiments come with a free printable lab journal, and the pumpkin catapult pairs well with the Pumpkin Launch sheet.

Halloween Math Jokes for the Board

A joke on the board at the start of class costs 10 seconds and buys you a minute of attention. Three classics to start with:

• Which monster is the best at math? Count Dracula.
• What do you get when you divide the circumference of a jack-o’-lantern by its diameter? Pumpkin pi.
• Why did the math book look so scared on Halloween? It had too many problems.

Two more are hidden in the riddle sheets, and the answer keys have the punchlines.

Free Math Practice After Halloween

If the worksheets show a gap, these help close it:

• My free study notes have worked examples and practice questions for topics from algebra to calculus, each with a printable PDF.
• A Trip to Mathematics is my free book for students who want to see where the rules come from, starting from logic and set theory and working up through algebra and analysis.
• IXL has adaptive math practice for every grade from pre-K to 12th grade, which helps when a child needs far more practice on one skill than a worksheet gives. It is a paid subscription.

For more options, I keep separate lists of the best math help websites and the best math apps.

FAQs on Halloween Math Worksheets

Final Remarks

Print the sheets for your grade, keep the answer keys on your desk and save the riddle for the last ten minutes of the period. Happy Halloween.

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