Math MysteriesMake a mystery

The Great Math Adventure

A free, printable Grade 3 multi-step word problem worksheet. Each problem takes two or three steps to solve. Work them on screen or print the PDF — a teacher/parent answer key is included.

  1. JUNGLE TREK

    Leo is packing backpacks for a jungle trek. He has 4 backpacks and puts 6 water bottles in each one. If he started with 30 water bottles, how many does he have left over?

    Answer:

  2. PIRATE TREASURE

    Captain Redbeard finds 3 small treasure chests on the beach. Each chest has 8 shiny gold coins inside. He also finds 15 loose silver coins in the sand. How many coins did the Captain find in total?

    Answer:

  3. SECRET LOOKOUT

    To build a secret treehouse lookout, Mia and Sam collect 18 long branches and 14 short branches. They tie them into bundles of 4 branches each. How many bundles do they make?

    Answer:

  4. SPACE RESCUE

    Rocket Girl needs to rescue 40 space puppies. She safely loads 3 crates with 6 puppies each into her main cabin, and divides the remaining puppies equally among her 2 backup rescue pods. How many puppies go into each rescue pod?

    Answer:

  5. DEEP SEA DIVING

    An underwater explorer has a camera that can take 50 photos. He takes 14 photos of coral reef. He uses the remaining camera space to take photos of 6 different schools of fish, taking the same number of photos of each school. How many photos did he take of each school?

    Answer:

  6. DRAGON'S LIBRARY

    A friendly dragon has 8 shelves of magical books, with 9 books on each shelf. He decides to lend 25 of these books to the local wizard school. How many books does the dragon have left in his library?

    Answer:

Show answer key (for grown-ups)
1.Leo is packing backpacks for a jungle trek. He has 4 backpacks and puts 6 water bottles in each one. If he started with 30 water bottles, how many does he have left over?6
2.Captain Redbeard finds 3 small treasure chests on the beach. Each chest has 8 shiny gold coins inside. He also finds 15 loose silver coins in the sand. How many coins did the Captain find in total?39
3.To build a secret treehouse lookout, Mia and Sam collect 18 long branches and 14 short branches. They tie them into bundles of 4 branches each. How many bundles do they make?8
4.Rocket Girl needs to rescue 40 space puppies. She safely loads 3 crates with 6 puppies each into her main cabin, and divides the remaining puppies equally among her 2 backup rescue pods. How many puppies go into each rescue pod?11
5.An underwater explorer has a camera that can take 50 photos. He takes 14 photos of coral reef. He uses the remaining camera space to take photos of 6 different schools of fish, taking the same number of photos of each school. How many photos did he take of each school?6
6.A friendly dragon has 8 shelves of magical books, with 9 books on each shelf. He decides to lend 25 of these books to the local wizard school. How many books does the dragon have left in his library?47

About Math Mysteries

Math Mysteries makes free, printable math for kids ages 6–12 — personalized to what your child is into. Beyond practice sheets like this one, you can generate a full math mystery whodunit (solve the math to catch the culprit), or browse free printable worksheets by grade, skill, and theme. Every puzzle is verified to have one correct answer.

Keep exploring

Free Printable Math Mystery Worksheets (Grades 1–5)
Hundreds of free, printable math mystery worksheets — pick a grade, print the case, and your kid solves math to catch the culprit.
Math Mystery Games for a Kid Who Hates Worksheets
An honest guide to detective-style math for kids who groan at drills — what actually works, and when a mystery beats a game.
Detective Math: Story-Driven Practice for Ages 6–12
How whodunit math turns arithmetic into deduction — the method, the research-backed why, and how to start today for free.