By Adrian W. Dudek

The VERY Big Sum

Teddy and Mabel have been given a challenge! Can they add up all the numbers from 1 to 100 before it gets too dark to play?

A story that shows young children that they can do big things if they strain their brain hard enough.
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Adrian W, Dudek is a mathematician and father of three who has spent years exploring the world of numbers, both in research and in education. He completed his PhD in pure mathematics at the Australian National University and now splits his time between teaching at the University of Queensland and working in the Education team at Optiver Sydney.

About The Author

About The Book

This is the story of a very big sum—and how Teddy and Mabel outsmarted their mum.

When the kids are challenged to add up all the numbers from 1 to 100 before it gets too dark to play, they have to think fast and strain their brains. Along the way, they discover that big things are possible—even when they seem out of reach.

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Illustrator:

Naya Lazareva

Publisher:

LITTLE STEPS PUBLISHING

ISBN:

978-1-922678-92-8

Recommended Age:

5 - 10 years

Testimonials

I picked up The VERY Big Sum for my niece, and we ended up reading it together — both of us were hooked! The story is funny and heartwarming, and I love how it sneakily teaches kids about numbers in a way that feels like a game, not a lesson. The illustrations are so charming and colorful — they really bring Teddy and Mabel to life. It’s the kind of book that sparks curiosity and confidence in young minds. Highly recommended for any kid who likes to ask “why?” and enjoys a good challenge!

— Megan R.

Teacher & Aunt
By Adrian W. Dudek

The VERY Big Sum

Teddy and Mabel have been given a challenge! Can they add up all the numbers from 1 to 100 before it gets too dark to play?

A story that shows young children that they can do big things if they strain their brain hard enough.
Grab Your Copy
© 2025 Adrian W. Dudek. All Rights Reserved.