Folders for Sale

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Determine how much the manager of a store reduced the price of a folder.

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Approximate Digit Use

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Use the digits 1, 2, 3, 4, 5, 6, 7, and 8 exactly once to make two decimal numbers whose product equals a particular number.

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Growing Tree

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After four years, how many feet high was a tree that Mrs. Johnson’s class planted?

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Missing Hundreds

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Determine the sum of all the digits that could replace the digit d in a given number.

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Remainders of Three

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Find the remainder when a large number is divided by 3.

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Johnny’s Rule

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A student has “discovered” a rule for subtracting fractions. Does his method always work? 

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Digital Fractions

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Use the digits 0 – 9 to make the fraction 1/3.

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Mysterious Numbers

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Discover some strange properties about a mysterious number.

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Can You Tell?

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Multiplying, dividing, and then comparing fractions.

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Where is that fraction?

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Look for patterns when multiplying fractions.

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