A math riddle has been printed on several images:

*Q: Why was the math book sad?
A: Because it had so many problems.*

The riddle was printed in many newspapers in 1987.

“I’m not sure how many problems I have because math is one of them” is another joke about math problems.

3 July 1987, Indiana (PA)

*Gazette*“Mighty Funny’s Mini Jokes,” The Mini Page, pg. 3, col. 2:

Why was the math book sad?

It had too many problems!

4 September 1988,

*The Arizona Republic*(Phoenix, AZ), “State youths share favorite jokes, riddles,” Kids page?, col. 2:

Question: Why was the math book so unhappy?

Answer: It had so many problems.

*Melody Rector, 10 Phoenix*

17 June 1990,

*Newsday*(Long Island, NY), “Smiles,” Kidsday, pg. ?”

Why was the math book crying? It had too many problems. - Fiona McGinn, Sound Beach

17 April 1994, Washington (DC)

*Post*“Mighty Funny’s Mini Jokes,” The Mini Page, pg. 3, col. 2:

Why was the math book sad?

It had too many problems!

Google Books

*Squeaky Clean Jokes for Kids*

By Bob Phillips and Steve Russo

Eugene, OR: Harvest House Publishers

1997

Pg. 52:

Tony: Why is a math book always cranky?

Tobiah: I have no idea.

Tony: Because it has lots of problems.

23 June 2000, Los Angeles (CA)

*Times*, “The Kids’ Reading Room; Jokes & Riddles, pg. E8, col. 5:

Why is a math book always sad? It has too many problems. (Jasmine, 10, Castlebay Lane Elementary, Northridge)

Google Books

*A Prairie Home Companion*

Pretty Good Joke Book

Pretty Good Joke Book

By Brian Becker

Minneapolis, MN: HighBridge

2003

Pg. 60:

Why was the math book sad?

Because it had so many problems.

Miguel Lopez

@mklopez

“Why is a math book so sad?” “Because it has many problems”

7:40 PM - 20 Oct 2008

Google Books

*Belly Laugh Jokes for Kids:*

350 Hilarious Jokes

350 Hilarious Jokes

By Sky Pony Editors

New York, NY: Skyhorse Publishing

2015

Pg. ?:

Q: Why was the math book sad?

A: Because it had too many problems.

Reddit—Jokes

Why was the math book sad?

submitted February 2, 2017 by Pm_Me_Jill_Valentine

It had lots of problems.

[My little brother told me this earlier.]