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A game from Calculation Nation - to play: Use your numbers to make a fraction. Any of the numbers can be used as either the numerator or denominator. The fraction indicates the location on the number line at which you'd like the shovel to dig. Then, click

"(Enter a number and I'll tell you everything you wanted to know about it but were afraid to ask.)" A cool search engine about numbers

The Interactivate activities are designed so that the user may keep track of correct responses. A number of these activities also allow users to select difficulty levels and specific problem types as well as to set a time limit, allowing for further tail