Grade 4

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

Directions: Use the digits 1 to 9, no more than once, to create three fractions that are as close to zero, one half and one as possible. NOTE: Close as possible is measured by adding up all the differences and making it the least possible value. Source: Darbie Valenti

Directions: Using the digits 0 to 9, no more than one time each, to fill in the boxes to decompose 1 1/10. Source: Christine Jenkins

Directions: Using the digits 0 through 9, at most one each time, create an an equivalent fraction and decimal number. Source: Giselle Garcia

Directions: Using the digits 1 to 9 at most one time each, fill in the boxes to create as many fractions as possible that are less than one half. Source: Christine Newell

Directions: Use the digits 1 to 9, at most one time each, to fill in the boxes to create a fraction that is as close to 5/11 as possible. Source: Robert Kaplinsky

Directions: Use the digits 1 to 9, at most one time each, to fill in the boxes to create two different fractions: one that is less than one half and one that is more than one half. Source: Robert Kaplinsky

Directions: Using the digits 1 through 9 at most one time each, fill in the boxes to create the smallest (or largest) whole number quotient. Source: Ellen Metzger

Directions: Using the digits 1 to 9 at most one time each, fill in the boxes to and make the greatest/least product. Source: Nanette Johnson

Directions: Using the digits 1 to 9 at most one time each, fill in the boxes to make the biggest/smallest product. Source: Nanette Johnson