Directions: Use the operation symbols (+, -, x, ÷) and equal sign (=) to make a true equation. Operation symbols may be used more than once. What is the least value for each part of the equation? What is the greatest value for each part of the equation? Can you complete the equation with at least one of each symbol? …

Read More »# Tag Archives: DOK 3

## Multiplication Decisions

Directions: Using the digits 5, 6, 7, and 8 exactly once and picking one of the expressions below, create the greatest product possible out of the two expressions. Source: Howie Hua

Read More »## Add Some, Subtract Some

Directions: Use the digits 1-9, at most once, to complete the equation. What is the greatest result you can make? What is the least result you can make? Source: Molly Rawding

Read More »## Scientific Notation 2

Directions: Using the digits 1 to 9 at most twice each, make the sum of the four expressions the greatest possible value. Source: Catriona Shearer

Read More »## Area of a Rectangle

Directions: Using the digits 1 – 9, at most once each, fill in the blanks 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 the least difference …

Read More »## Time Twister

Directions: Using the digits 0 to 9, at most one time each, create three different times on the clocks where the span of the times are between 12 noon and 7 pm. How can you make the difference between the times the greatest? closest times together? Source: Jason Kornoely

Read More »## Adding and Subtracting Two-Digit Whole Numbers

Directions: Directions: Use the digits 0 to 9, at most one time each, to make a true statement. Source: Brian Errey

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 »## Multiplying Fractions 4

Directions: Using the digits 1 to 9 at most once each time, fill the boxes to make the greatest possible product. Source: Marc DeArmond

Read More »## Prime Factorization 2

Directions: Using the digits 0 to 9 at most one time each, fill in the boxes to make the greatest possible product. Source: Robert Kaplinsky

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