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The Number System

Multiplying Fractions 3

Directions: Find three fractions whose product is -5/24. You may use fractions between -8/9 to 8/9 no more than one time each. Find at least 2 possible combinations. Source: Al Oz

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Rational Number Computation

Directions: Using the numbers -5 to 5 at most once each, write an expression that will have the greatest (or least) absolute value. Source: Michael Wiernicki

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Absolute Value 2

Directions: Using the numbers 1 to 9 at most once each time, fill in the blanks to make the equality true: Source: Bryan Anderson

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Absolute Value

Directions: Using the numbers 1 to 9 at most once each time, fill in the blanks to make the statement true: Source: Bryan Anderson

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Creating Zero

Directions: Using the numbers 1 to 9 at most once each time, fill in the blanks to make the equality true: Source: Bryan Anderson

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Undefined Quotient with Fraction Division

Directions: Give at least two different examples where the quotient is undefined by filling in the boxes with whole numbers 0 through 9, using each number at most once for each example. Source: Daniel Luevanos

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Multiply to Make -64

Directions: Find three numbers whose product is -64. You may use integers from -10 to 10. You may not use the same absolute value twice. Find all possible combinations. Source: Nathan Charlton and Daniel Martinez

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Subtracting Decimals (Middle School)

Directions: Make the smallest (or largest) difference by filling in the boxes using the whole numbers 1-9 no more than one time each. Note: This problem’s difficulty can be adjusted by altering the number of digits (boxes), picking smallest or largest, or by picking either a positive, negative, or both. Source: Robert Kaplinsky

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