Math is Figure-Out-Able!

#MathStratChat - April 16, 2025

Pam Harris, Kim Montague

In today’s MathStratChat, Pam and Kim discuss the MathStratChat problem shared on social media on April 16, 2025. 


Note: It’s more fun if you try to solve the problem, share it on social media, comment on others strategies, before you listen to Pam and Kim’s strategies.


Check out #MathStratChat on your favorite social media site and join in the conversation.

Twitter: @PWHarris

Instagram: Pam Harris_math

Facebook: Pam Harris, author, mathematics education


Want more? Check out the archive of all of our #MathStratChat posts!

Pam  00:01

Hey, fellow mathers. Welcome to the podcast where Math is Figure-Out-Able. I'm Pam.

 

Kim  00:07

And I'm Kim.

 

Pam  00:08

And this episode is a MathStratChat episode, where we chat about our math strategies. Wednesday evenings, I throw out a math problem on social media and people from around the world chat about the strategies they use and comment on each other's thinking.

 

Kim  00:20

Okay, so this week, our problem was 36 plus 48. How would you solve this problem? Pause the podcast. Solve it however you'd like. The problem is 36 plus 48.

 

Pam  00:33

Hey, you know how other people use MathStratChat, Kim, is sometimes they put it up on their classroom wall.

 

Kim  00:38

Mmhm. 

 

Pam  00:39

Like on bulletin board and have kids participate. Sometimes they put it in faculty rooms. Sometimes they put in the hallway. We have a teacher friend who has a... Golly, what do you say? Their team is all on a chat, and they put it on the chat, and the people... Yeah, lots of ways that you can use MathStratChat. (unclear).

 

Kim  00:55

If you were a leader, I would love if that were part of your morning announcements. 

 

Pam  01:00

Mmm, that would be good, huh? 

 

Kim  01:01

Yeah. 

 

Pam  01:01

Yeah.

 

Kim  01:02

Okay, I'm going to do... I'm feeling kind of Give and Take today. So, I'm going to say that 36 plus 48 is equivalent to 34 plus 50. I take 2 from 36. And I know that 34 and 50 is 84.

 

Pam  01:18

Very nice. I'm going to think about 6s. 

 

Kim  01:24

Okay.

 

Pam  01:24

So, 36 is six 6s. And 48 is eight 6s. And six 6s and eight 6s is fourteen 6s. Ew, ugh. Okay, I'm not so happy about 6s. 

 

Kim  01:37

I... Can I tell you what I thought you were going to to do? 

 

Pam  01:39

Can I think about? Can I take it back? Can I think about 18s instead? 

 

Kim  01:42

Sure. 

 

Pam  01:43

I'm going to think about two 18s and three 18s, and that's five 18s.

 

Kim  01:50

Mmhm. 

 

Pam  01:50

And five 18s is half of ten 18s. Ten 18s is 180. Half of that's 90. Yeah, I like that a lot better. Is that what you thought I was going to do (unclear)? 

 

Kim  01:59

No.

 

Pam  01:59

No?

 

Kim  01:59

I thought you were going to do 4s. Nine 4s. 

 

Pam  02:02

4s?

 

Kim  02:03

Nine 4s. 

 

Pam  02:04

And? 

 

Kim  02:04

Is 36. And twelve 4s for 48.

 

Pam  02:08

Okay.

 

Kim  02:08

Because then you have twenty-one 4s. Which is kind of nice.

 

Pam  02:11

Huh. Twenty-one 4s.

 

Kim  02:13

Mmhm. 

 

Pam  02:15

Okay. Huh. 

 

Kim  02:18

Yeah, I like these problems. Well done. (unclear).

 

Pam  02:21

We could do 12s as well, ay?

 

Kim  02:24

Yeah.

 

Pam  02:25

Three 12s and four 12s is seven 12s. Which is one of the facts I don't know.

 

Kim  02:32

Oh, I was going to say that's Cooper's favorite fact.

 

Pam  02:34

It's 84.

 

Kim  02:36

Yeah. 

 

Pam  02:36

But I always have to think just a little bit about 7 times 12 and 8 times 12.

 

Kim  02:40

Huh. Maybe that's why you made this the problem. Maybe it was originally about the 12s. 

 

Pam  02:45

Could have been. When did I write these? Years ago? Okay.

 

Kim  02:47

I don't know. Alright, well we can't wait to see what you do every week. Please join us on MathStratChat and let us know how you think about the problems. And while you're there, posting your solution, comment on each other's strategies.

 

Pam  02:58

That is the best way for us to get MathStratChat to more people, and more people can learn that Math is Figure-Out-Able. Ya'll, we post the problems on Wednesdays around 7:00 pm Central. When you answer, tag me, use the hashtag MathStratChat, and then join us here to hear how we're thinking about the problem. Thanks for making math more figure-out-able for everyone that you interact with every day because Math is Figure-Out-Able!