Book 284: 1 + 1 = 5 and Other Unlikely Addtions

One plus One is Five and Other Unlikely Additions book1 + 1 = 5 and Other Unlikely Addtions

by David LaRochelle, illustrated by Brenda Sexton

1 + 1 =5 by David LaRochelle is perfect for some math fun towards the end of the school year or during summer school. This book is really a math riddle book which will delight children who already know basic math facts.  For instance, one problem in the book is the same as the title, 1 + 1 = 5, and this is true when 1 set of triplets and 1 set of twins equals 5. Some of these problems would probably confuse children just learning addition, but most children would enjoy solving the problems. All of the problems in the book are 1 + 1, so they are based on one set of one kind of something or another.

Adults could present this book in all seriousness and not smile at first, and then surprise the students with some fun math.

I made a free animated Power Point of silly math riddles a little similar to the problems in the book, and a student work page so students may write their own math riddles.  Happy math, Carolyn

Unlikely additions Power Point fun math riddles free, here

Unlikely additions student work page PDF, free, here (and attached to the PPt)Unlikely Additions title slide for Power Point for math riddles photo

unlikely additions student math riddle writing and illustrating page photo

About Carolyn Wilhelm

Carolyn Wilhelm is the author of The Wise Owl Factory, The Wise Owl Factory Book a Day Blog, and is web master for the Wise Owl Factory Teaching Friends blog She has an MS in Gifted Education, an MA in Curriculum and Instruction K-12, and is a National Board Certified Teacher.
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2 Responses to Book 284: 1 + 1 = 5 and Other Unlikely Addtions

  1. Thanks for reading! Carolyn

  2. Lorie says:

    That sounds like a great book! Can’t wait to check it out!