Grade 5

Directions: Using the digits 2 to 9, at most one time each, place a digit in each box to make the statements true. Source: Bryan Anderson

Directions: A rectangular prism has a volume of 144 cubic units and a base of 48 square units. What could the possible dimensions be? Source: Stem Savvy Girls

Directions: Using the digits 1 to 9, at most one time each, place a digit in each box to make three decimals whose sum is as close to 1 as possible. Source: Robert Kaplinsky

Directions: Using the digits 1 to 9, at most one time each, place a digit in each box so that the sum is equal to 1/2. Source: Daniel Luevanos

Directions: Using the digits 1 to 9, at most one time each, place a digit in each box to create three different mixed numbers that will make the equation true. You may reuse the same numbers for each of the three mixed numbers. Source: Robert Kaplinsky

Directions: Using the digits 1 to 9, at most one time each, place a digit in each box to make the smallest (or largest) sum. 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

Directions: Find two fractions whose difference is 1/20. Source: Kara Colley

Directions: Find two fractions whose product is 1/20. Source: Kara Colley

Directions: Find two fractions whose sum is 1/20. Source: Kara Colley

Directions: Using the digits 0 to 9, at most one time each, make the largest (or smallest) possible expression. Note: for 5th grade, remove the exponent to make it grade level appropriate. Source: Robert Kaplinsky with answer from Michael Fenton and his students.