Directions: Using the digits 1 to 9, at most one time each, place a digit in each box to make each statement true. Source: The Open Middle Elementary Team and Dean Johnstone
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Area of a Rectangle
Directions: Using the digits 1 to 9, at most one time each, place a digit in each box to make it so that the value for the area of the rectangle (in square units) is greater that the value for the perimeter (in linear units). What is the greatest difference you can find between the area and perimeter? What is …
Read More »Multiplying Two-Digit Numbers – Closest to 7,000
Directions: Using the digits 1 to 9, at most one time each, place a digit in each box to make the product as close to 7,000 as possible. Source: Paolo Tolomeo
Read More »Adding Products
Directions: Old Mother Hubbard is baking cookies so her cupboards won’t be bare anymore! She bakes 109 cookies in all. She bakes the cookies on 4 cookie sheets. Each cookie sheet is arranged into equal rows and columns, but not every cookie sheet has the same number of rows and columns. Using digits 0-9, at most once, how might the …
Read More »Four Digit Products
Directions: Using the digits 1 to 9, at most one time each, place a digit in each box to make the equation true. Source: Adina R
Read More »Adding Parts of a Whole
Directions: Using the digits 1 to 9, at most one time each, place a digit in each box to make the equation true. Source: Miles Knight
Read More »Using 1/2 as a Benchmark
Directions: Using the digits 1 to 9, at most one time each, place a digit in each box to make true statements. For the fraction less than 1/2, try to make the greatest number possible. For the fraction greater than 1/2, try to make the least number possible. Source: Alyson Eaglen
Read More »Multiplying Differences
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
Read More »Multiplying Differences 2
Directions: Using the digits 1 to 9, at most one time each, place a digit in each box to make a product that’s as close to 50 as possible. Source: Owen Kaplinsky
Read More »Adding Multiples
Directions: Using the digits 0 to 9, at most one time each, place a digit in each box to make the statement true. Source: Owen Kaplinsky
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