Zero is lonely in Digitaria. He can't play Addemup with the other numbers, because he has nothing to add. What's a digit to do? Join Zero as he goes on a journey to discover his place.

Join Zero on his math adventure as he discovers his place through multiplication. Zero is lonely in Digitaria. He can't play Addemup with the other numbers because he has nothing to add. All the other numbers seem to belong and they all have a place, but when zero discovers multiplication he thinks he might have a place there. He sets out to find King Multiplus who also is curious about what will happen when Zero gets thrown in the mix. With math and wordplay A Place for Zero is the perfect introduction to multiplication and number placement. A playful way to make math less intimidating and more fun to explore.

Crack the case with George Cornelius Factor in this entertaining math adventure that introduces simplified and reduced fractions with equal parts intrigue and humor. When a valuable fraction goes missing, George Cornelius Factor (a.k.a. GCF) vows to track it down. Knowing that the villainous Dr. Brok likes to disguise his ill-gotten fractions, GCF invents a Reducer—half ray gun, half calculator— that strips away the disguise, reducing the fraction to its lowest common denominator and revealing its true form. With the Reducer in hand, George seeks out Dr. Brok in hopes of retrieving the missing fraction. Back matter includes more detail on simplifying, or reducing, fractions.

Zero. Zip. Zilch. Nada. That's what all the other numbers think of Zero. He doesn't add anything in addition. He's of no use in division. And don't even ask what he does in multiplication. (Hint: Poof!) But Zero knows he's worth a lot, and when the other numbers get into trouble, he swoops in to prove that his talents are innumerable.

First-hand, human stories of hope, resilience, determination, and family: a call to see the world's children as our own, by the President and CEO of the U.S. Fund for UNICEF In I Believe in ZERO, President and CEO of the U.S. Fund for UNICEF, an organization known for its decades of charity work and philanthropy with the United Nations, Caryl M. Stern draws on her travels around the world, offering memorable stories that present powerful and sometimes counter-intuitive lessons about life. I Believe in ZERO reflects her-and UNICEF's-mission to reduce the number of preventable deaths of children under the age of five from 19,000 each day to zero. Each of the stories in I Believe in ZERO focuses on a particular locale-Bangladesh, Mozambique, earthquake-ravaged Haiti, the Brazilian Amazon-and weaves together fascinating material on the country and its history, an account of the humanitarian crises at issue, and depictions of the people she meets on the ground. Stern tells of mothers coming together to affect change, of local communities with valuable perspectives of their own, and of children who continue to sustain their dreams and hopes even in the most dire of situations. Throughout, Stern traces her emerging global consciousness-and describes how these stories can positively impact our own children. In this incredibly moving book, Stern hopes to open hearts and minds and leave readers with the belief that no child anywhere should lack basic human support-and that every child and mother can be an inspiration.

Looks at counting systems and the history of the number zero.

A NEW YORK TIMES NOTABLE BOOK The Babylonians invented it, the Greeks banned it, the Hindus worshipped it, and the Christian Church used it to fend off heretics. Today it's a timebomb ticking in the heart of astrophysics. For zero, infinity's twin, is not like other numbers. It is both nothing and everything. Zero has pitted East against West and faith against reason, and its intransigence persists in the dark core of a black hole and the brilliant flash of the Big Bang. Today, zero lies at the heart of one of the biggest scientific controversies of all time: the quest for a theory of everything. Within the concept of zero lies a philosophical and scientific history of humanity. Charles Seife's elegant and witty account takes us from Aristotle to superstring theory by way of Egyptian geometry, Kabbalism, Einstein, the Chandrasekhar limit and Stephen Hawking. Covering centuries of thought, it is a concise tour of a world of ideas, bound up in the simple notion of nothing.