Book Series · 6 Books

Math Matters Books

In order from A Collection for Kate to Grandma's Button Box.

The Math Matters series is a set of 6 picture books by Barbara deRubertis, published between 1999 and 2002. Written for ages 5–8, most books run about 30 pages.

A Collection for Kate
The 100-Pound Problem
Lulu's Lemonade
Henry Keeps Score
Keep Your Distance!
Where the story begins

First Book in the Series

A Collection for Kate
Sale price
$574
Book #1 · Picture Book · Ages 5–7 · 1999

A Collection for Kate

By Barbara deRubertis, Rebecca Thornburgh (Illustrator)

Kate needs a collection for school, but time is running out. Can math help her succeed?

32 pages
$5.99Save 4%
Paperback
Summary: Kate faces a dilemma during Collection Week at school—she has no collection to show! With the clock ticking, she must find a creative solution. Can she use her math skills to save the day? Dive into this engaging story where math meets everyday challenges, and discover how addition can turn a problem into an opportunity. Bonus activities and questions enhance the learning experience, making math fun and relatable for young readers. Will Kate's quick thinking and math prowess help her shine?
The complete set

Math Matters Series

6 books · Published 1999–2002

Series
Sale price
$574

A Collection for Kate

Picture Book · Ages 5–7 · 1999

Kate needs a collection for school, but time is running out. Can math help her succeed?

Sale price
$574

The 100-Pound Problem

Picture Book · Ages 5–7 · 2000

Can a boy solve the weight puzzle to cross the river with his dog and gear?

Sale price
$574

Lulu's Lemonade

Picture Book · Ages 5–7 · 2000

Three kids debate lemonade ingredients, learning math along the way.

Sale price
$574

Henry Keeps Score

Picture Book · Ages 5–7 · 2001

Henry learns that sometimes having less is more in this math adventure.

Sale price
$574

Keep Your Distance!

Chapter Book · Ages 6–8 · 2001

Jen must find space as her sister takes over their shared room.

Grandma's Button Box

Picture Book · Ages 5–7 · 2002

Can Kelly sort the scattered buttons before Grandma returns?

Good to know

Common Questions

How many books are in the Math Matters series?

There are 6 books in the Math Matters series. It began with A Collection for Kate in 1999, and the newest book, Grandma's Button Box, was published in 2002.

What ages are the Math Matters books best for?

The series is best for ages 5–8, based on the age ranges of the individual books.

The people

The Creatives Behind the Books

The authors and illustrators who bring Math Matters to life.

01

Barbara deRubertis

Author
02

Jennifer Dussling

Author
03

Daphne Skinner

Author
04

Gail Herman

Author
05

Rebecca Thornburgh

Illustrator
06

Page Eastburn O'Rourke

Illustrator
07

Jerry Smath

Illustrator

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