Number & Operations in Base Ten

Directions: Using the digits 1 to 9, at most one time each, place a digit in each box to complete the equation. What is the greatest result you can make? What is the least result you can make? Source: Molly Rawding

Directions: Using the digits 0 to 9, at most one time each, place a digit in each box to make a two-digit number that has a value between given numbers. Source: Thach-Thao Phan

Directions: Using the digits 1 to 9, at most one time each, place a digit in each box on the number line to make the number line true. NOTE: number line not drawn to scale Source: Amanda Dey

Directions: Using the digits 1 to 9, at most one time each, place a digit in each box to make the equation true. Source: Owen 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. 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) difference. Source: Robert Kaplinsky

Directions: Using the digits 0 to 9, at most one time each, place a digit in each box to make the equation true. Source: Robert Kaplinsky