Jordan, Justin and Stephanie use their math skills to solve a string of local burglaries while dealing with the class bullies.

"Manny, Olivia, and Mei go apple picking and sort their red, green, and yellow apples by color. But then they find an apple that’s all three colors. What should they do?...[This book is an] exploration of sorting, classifying, and friendship.

Milli, Geo, and Bot become police officers for a day and have to use their mighty math powers to protect Umi City from the stinkbugs.

Lila and her friends are troubled when they discover the dog park does not have a bench for eighty-year-old Mr. Romero to use, so they decide to start a dog-wash to raise money for one, and learn about percentages along the way.

"Dive into four new stories about Narwhal and Jelly becoming substitute teachers! The two best friends come across an enthusiastic school of fish one morning. Unfortunately, Mr. Blowfish, their teacher, has come down with a cold, and class will have to be cancelled . . . until Professor Knowell (Narwhal) and Super Teacher (Jelly) volunteer to help out! The first subject is Wafflematics, in which Narwhal and Jelly calculate the number of waffles needed...

"A story about inclusion, diversity, and the power of math to help one boy with autism thrive among his peers. Juan claps his hands to get his Jitters out. They make his tummy swoosh and swirl. His Jitters happen when there are too many people, too much noise, or too many changes to his day. Juan doesn’t like surprises. Tomorrow there is an athletic event planned at school, which makes Juan very nervous. But his teacher has the perfect solution:...