Question

whats an array? and how would i show it with plastic dimes. i need to help kids find 8 x 70 can you explain how you would do it??

Answer 1

http://math.about.com/od/glossaryofterms/g/Definition-Of-Arrays-In-Mathematics.htm

Answer 2

do you know how i would be able to do it with dimes only? my mother is going for an interview as a 4th grade teacher and she really needs to picture how do it so she can grab a grasp on it.