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

Read More »## Robert Kaplinsky

## Decimal Subtraction

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

Read More »## Decimal Addition 2

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

Read More »## Composite Numbers

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

Read More »## 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

Read More »## Adding Fractions 7

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

Read More »## Adding Fractions 6

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

Read More »## Equivalent Fractions

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

Read More »## Prime Numbers

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

Read More »## 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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