Playful Math Carnival 128 at Math Misery? Blog

Check out the new playful math blog carnival at Math Misery? blog. Manan Shah put together a great collection of number puzzles along with some math games, teaching tips, and more:

It’s like a free online magazine of mathematical adventures.

Enjoy!

And if you’re a blogger, be sure to submit your blog post for next month’s carnival!

Click here to go read the carnival blog

Do You Want More Ways to Play with Math?

Past carnivals are still full of mathy treasure. See them all on Pinterest:


howtosolveproblemsWant to help your kids learn math? Claim your free 24-page problem-solving booklet, and sign up to hear about new books, revisions, and sales or other promotions.

Playful Math Carnival 127 at Find the Factors

Check out the latest carnival of playful math for all ages:

Iva put together this carnival of mathematical fun with numbers and shapes, math art and creative writing, games, Desmos activities, books to read with your kids, history, optical illusions, fractions, exponents, statistics, linear equations, and more — even an egg hunt.

Each monthly Playful Math Education Blog Carnival brings you a great new collection of puzzles, math conversations, crafts, teaching tips, and all sorts of mathy fun.

It’s like a free online magazine of mathematical adventures, helpful and inspiring no matter when you read them. Enjoy!

Click Here to Read the Carnival Blog

Want to Join in the Fun?

Do you have a favorite blog post about math activities, games, lessons, or hands-on fun? The Playful Math Blog Carnival would love to feature your article!

We welcome math topics from preschool through the first year of calculus. Old posts are welcome, as long as they haven’t been published in past editions of this carnival.

To submit a blog article for consideration, fill out this form:

Click Here to Share Your Post

Have you noticed a new math blogger on your block that you’d like to introduce to the rest of us? Feel free to submit another blogger’s post in addition to your own. Beginning bloggers are often shy about sharing, but like all of us, they love finding new readers.


CREDITS: “Fireworks” photo (top) by Ray Hennessy and “Adulting done right” (treats) photo by Toa Heftiba on Unsplash.

howtosolveproblemsWant to help your kids learn math? Claim your free 24-page problem-solving booklet, and sign up to hear about new books, revisions, and sales or other promotions.

Playful Math Carnival 126 at Math Mama Writes

Check out the new playful math blog carnival at Math Mama Writes blog. Sue put together a great collection of geometry constructions, story problem ideas, teaching tips, and more:

It’s like a free online magazine of mathematical adventures. Enjoy!

Click here to go read the carnival blog

And if you’re a blogger, be sure to submit your blog post for next month’s carnival!

Do You Want More Ways to Play with Math?

Past carnivals are still full of mathy treasure. See them all on Pinterest:


howtosolveproblemsWant to help your kids learn math? Claim your free 24-page problem-solving booklet, and sign up to hear about new books, revisions, and sales or other promotions.

Playful Math Carnival 125 at Singapore Maths Tuition

Check out the latest carnival of playful math for all ages:

Each monthly Playful Math Education Blog Carnival brings you a great new collection of puzzles, math conversations, crafts, teaching tips, and all sorts of mathy fun.

It’s like a free online magazine of mathematical adventures. Enjoy!

William put together this carnival of 10 evergreen links — helpful and inspiring no matter when you read them — featuring chess statistics, a horse riddle, fish that count, and more.

Click Here to Read the Carnival Blog

Want to Join in the Fun?

Do you have a favorite blog post about math activities, games, lessons, or hands-on fun? The Playful Math Blog Carnival would love to feature your article!

We welcome math topics from preschool through the first year of calculus. Old posts are welcome, as long as they haven’t been published in past editions of this carnival.

To submit a blog article for consideration, fill out this form:

Yes! Please Share My Post

Have you noticed a new math blogger on your block that you’d like to introduce to the rest of us? Feel free to submit another blogger’s post in addition to your own. Beginning bloggers are often shy about sharing, but like all of us, they love finding new readers.


CREDITS: Carnival photo (top) by Scott Trento on Unsplash.

howtosolveproblemsWant to help your kids learn math? Claim your free 24-page problem-solving booklet, and sign up to hear about new books, revisions, and sales or other promotions.

Playful Math Carnival 124 at Life Through A Mathematician’s Eyes

Check out the new playful math blog carnival at Life Through A Mathematician’s Eyes blog. Ioana put together a great collection of math games, activities, and teaching tips:

Click here to go read the carnival blog

And if you’re a blogger, be sure to submit your blog post for next month’s carnival!

Do You Want More Ways to Play with Math?

Past carnivals are still full of mathy treasure. See them all on Pinterest:


howtosolveproblemsWant to help your kids learn math? Claim your free 24-page problem-solving booklet, and sign up to hear about new books, revisions, and sales or other promotions.

Playful Math Education Carnival 123: Hundred Chart Edition

Do you enjoy math? I hope so!

If not, browsing this post just may change your mind.

Welcome to the 123rd edition of the Playful Math Education Blog Carnival — a smorgasbord of delectable tidbits of mathy fun.

The Playful Math Carnival is like a free online magazine devoted to learning, teaching, and playing around with math from preschool to high school. This month’s edition features \left ( 1 + 2 + 3 \right )^{2} = 36 \: articles from bloggers all across the internet.

You’re sure to find something that will delight both you and your child.

By tradition, we start the carnival with a puzzle in honor of our 123rd edition. But if you would like to jump straight to our featured blog posts, click here to see the Table of Contents.

Or more, depending on how you count. And on whether I keep finding things to squeeze in under the looming deadline. But if there are more, then there are certainly 36. Right?

The 1-2-3 Puzzle

Write down any whole number. It can be a single-digit number, or as big as you like.

For example:
64,861,287,124,425,928

Now, count up the number of even digits (including zeros), the number of odd digits, and the total number of digits it contains. Write those numbers down in order, like this:
even 12, odd 5, total 17

Then, string those numbers together to make a new long number, like so:
12,517

Perform the same operation on this new number. Count the even digits, odd digits, and total length:
even 1, odd 4, total 5

And do it again:
145
even 1, odd 2, total 3

If you keep going, will your number always turn into 123?

Click here for all the mathy goodness!