Number & Operations in Base Ten

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

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

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

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

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

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

Directions: Use the digits 1 to 9, at most one time each, to fill in the boxes to get the difference that is as close to 1 as possible. Source: Giselle Garcia

Directions: Use the digits 1 to 9, at most one time each, to create two numbers that have a product as close to 500,000 as possible. NOTE: You may use any length of factors as you would need. Ex 8 digit by 1 digit. 4 digit by 3 digit. Source: Miles Knight

Directions: Using the digits 0 to 9 at most one time each, fill in the boxes to make the value of this expression is as large as possible. Challenge: Try to make this expression as close to 30 as possible (for an added challenge, try to make this expression as close to 30 as possible using just the digits 1 …

Directions: Using the digits 1 to 6 at most one time each, fill in the boxes to make the largest (or smallest) number that rounds to 5. Source: Annie Forest