by Tang, Greg.
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I see a pattern here
Outdoor math : fun activities for every season
How big is 43 quintillion?
School rules! Math : shortcuts, secrets, puzzles, and tricks to help you become a math master
The cat in numberland
Speed math for kids : the fast, fun way to do basic calculations
Mathemagic! : number tricks
Greg's garage sale : a money counting adventure
Whodunit math puzzles
Arithme-tickle : an even number of odd riddle-rhymes
Math trek : adventures in the MathZone
Briggs, Harry (Illustrator)
English
1st ed.
Counting > Juvenile fiction.
Arithmetic > Juvenile nonfiction.
Mathematics > Study and teaching (Elementary)