MathLibs^TM Factor Trees

Think, then reveal!

Enter 5 names (comma-separated)

Choose difficulty Easy (up to 30)Medium (up to 60)Hard (up to 100)

Lets Play!

Question 1 of 5 0

Flip to Check Your Work

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MathLibs^TM Factor Trees

Think, then reveal!

Enter 5 names (comma-separated)

Choose difficulty Easy (up to 30)Medium (up to 60)Hard (up to 100)

Lets Play!

Question 1 of 5 0

Flip to Check Your Work

Next →

Great Job!

Play Again

MathLibs has been sparking laughter and learning since 2003, earning love from classrooms, living rooms, and learning labs across the country. Designed as a joyful blend of customization and practice, it lets kids choose math levels, input silly words, and build confidence while having a blast.

Did You Know?
Math anxiety reduces blood flow to the brain’s problem-solving areas. When a child feels anxious about math, the amygdala activates, which disrupts the dorsolateral prefrontal cortex—the region responsible for working memory and logical thinking. That makes it harder to solve even basic problems. Repeated stress reinforces this cycle, making future math tasks feel even harder.
(Ashcraft, Mark H. “Math Anxiety: Personal, Educational, and Cognitive Consequences.”)

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MathLibs^TM Division

Enter 5 names (commd-separated)

Choose difficulty Easy (divide by 1-5)Medium (divide by 2-10)Hard (divide by 2-12)

Start Quiz

Question 1 of 5 0

Check ✓

Next →

Great Job!

Play Again

PBS Teachers once praised MathLibs for its inventive design and ability to draw kids into math without anxiety. Unlike worksheets that trigger groans, MathLibs offers joyful engagement through choice, humor, and repetition embedded in creativity.

Did You Know?
By first grade, many students already carry beliefs about whether they’re “good at math.” These early impressions—often formed by classroom tone or feedback—can last into adulthood. Positive, playful math experiences that let kids laugh and take ownership early on help shape more flexible, confident math identities.
(Cimpian, Andrei, et al. “Children’s Beliefs About Intelligence and Effort: Implications for Learning.”)

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MathLibs^TM Division

Enter 5 names (commd-separated)

Choose difficulty Easy (divide by 1-5)Medium (divide by 2-10)Hard (divide by 2-12)

Start Quiz

Question 1 of 5 0

Check ✓

Next →

Great Job!

Play Again

MathLibs caught the attention of the National Council of Teachers of Mathematics for its creative approach to fluency-building. It delivers the kind of repetition teachers want—with the kind of delight kids need. And it’s free, so no school or family is left out.

Did You Know?
Making mistakes in math can actually strengthen the brain—if the environment feels safe. The anterior cingulate cortex becomes more active when we recognize an error and try again. But if a child feels ashamed or judged, that learning system shuts down. Lighthearted, repeatable tasks that make errors no big deal keep the brain engaged.
(Immordino-Yang, Mary Helen. Emotions, Learning, and the Brain.)

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MathLibs Addition

Enter 5 names (comma-separated)

Choose difficulty Single digits (1-9)Double digits (10-50)Triple digits (100-500)

Start Quiz

Question 1 of 5 0

Check ✓

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Play Again

When kids get to see their own name and number choices in a personalized math game, they feel like the activity belongs to them. That sense of ownership boosts engagement and memory—both essential for deep learning.

Did You Know?
Seeing your name or your dog’s name in a math game activates the brain’s self-relevance network. The medial prefrontal cortex lights up when content feels personally meaningful, which increases attention and memory. Personalized, silly input helps math stick better than plain numbers on a page.
(Thibodeaux, Nicole, et al. “Personal Relevance and Learning in Children.”)

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MathLibs Addition

Enter 5 names (comma-separated)

Choose difficulty Single digits (1-9)Double digits (10-50)Triple digits (100-500)

Start Quiz

Question 1 of 5 0

Check ✓

Next →

Great Job!

Play Again

A tool that’s free, fun, and flexible? That’s been the MathLibs promise from the start. It was designed to grow with a child’s skillset—from basic facts to more advanced combinations—so learning feels playful, not pressured.

Did You Know?
Repetition builds math fluency—but the brain works better when practice has small twists. When a task changes slightly each time, like swapping out numbers or words, the hippocampus stays alert and dopamine levels remain higher. This leads to better long-term retention than drill-only methods.
(Sousa, David A. How the Brain Learns Mathematics.)

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MathLibs Multiplication

Enter 5 names (comma-separated)

Times tables to practice (1–12)

Start Quiz

Question 1 of 5 0

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What do kids say about MathLibs? “I made a funny one about a dog named Fluffy Mc Fluffster.” That sense of humor mixed with repetition helps math stick while lowering stress—especially for kids who get nervous when asked to do math out loud.

Did You Know?
Laughter boosts dopamine, lowers cortisol, and helps the brain remember what it’s learning. That’s why funny math activities support better focus and recall. When kids laugh while doing math, they are more likely to persist and remember their facts later.
(Posamentier, Alfred S. “The Role of Humor in Learning Mathematics.”)

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MathLibs

Enter 5 names (comma-separated)

Times tables to practice (1–12)

Start Quiz

Question 1 of 5 0

Check ✓

Next →

Great Job!

Play Again

What do parents say? “My daughter actually asked to do math.” For over 20 years, MathLibs has helped bridge the gap between home and classroom, showing that playful learning isn’t just possible—it’s powerful.

Did You Know?
Giving kids choice—like which numbers to use or which words to insert—activates motivation centers in the brain. Research shows that autonomy improves effort and engagement, especially when tasks are just the right level of challenge.
(Deci, Edward L., and Ryan, Richard M. Intrinsic Motivation and Self-Determination in Human Behavior.)

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