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Robert Kaplinsky

Decimal Addition 3

Directions: Use the digits 1 to 9, at most one time each, to make a sum with the greatest possible value. Source: Owen Kaplinsky and Robert Kaplinsky

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Decimal Subtraction

Directions: Use the digits 1 to 9, at most one time each, to make two true statements. Source: Owen Kaplinsky

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Decimal Addition 2

Directions: Use the digits 1 to 9, at most one time each, to make two true statements. Source: Owen Kaplinsky

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Composite Numbers

Directions: Use the digits 1 to 9, at most one time each, to make 5 composite numbers. Source: Owen Kaplinsky

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Place Value

Directions: Use the digits 1 to 9, at most TWO times each, to create a nine-digit number and it’s corresponding place values. Source: Owen Kaplinsky

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Adding Fractions 7

Directions: Use the digits 1 to 9, at most one time each, to make a true statement. Source: Owen Kaplinsky

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Adding Fractions 6

Directions: Using the digits 1 to 9 at most one time each, fill in the boxes to make a true statement. Source: Owen Kaplinsky

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Equivalent Fractions

Directions: Use the digits 1 to 9, at most one time each, to make three equivalent fractions. Source: Owen Kaplinsky

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Prime Numbers

Directions: Use the digits 1 to 9, at most one time each, to make 5 prime numbers. Source: Owen Kaplinsky

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Derivative of Trig Functions 2

Directions: Fill in the boxes below using the digits 1 to 6, at most one time each, to make the largest value for D (the derivative). Source: Chris Luzniak

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