Tag Archives: DOK 2: Skill / Concept

Directions: Using the digits 2 to 9 at most one time each, place a digit in each box to make two correct equations: one where the value is greater than 30 and one less than 30. You may reuse all the digits each equation. Source: Robert Kaplinsky

Directions: Using the digits 0 to 9 at most one time each, place a digit in each box to make two different true number sentences: one with a product that’s less than 500 and one with a product that’s greater than 500. You may reuse all the digits each product. Source: Robert Kaplinsky

Directions: Using the digits 1 to 9 exactly one time each, place a digit in each box two times: once to make a sum that is greater than 700 and once to make a sum that is less than 700. You may reuse all the digits for each sum. Source: Robert Kaplinsky

Directions: Using the digits 1 to 9 at most one time each, place a digit in each box to make two different pairs of three-digit numbers that form a true number sentence. You may reuse all the digits each difference. Source: Robert Kaplinsky

Directions: Using the digits 0 to 9 at most one time each, place a digit in each box to make two different three-digit numbers that round (to the nearest hundred) to 500. Source: Robert Kaplinsky

Directions: Using the integers -9 to 9 at most one time each, place an integer in each box to make two expressions: one that has three or more terms and one that has fewer than three terms. You may reuse all the integers for each expression. Source: Robert Kaplinsky in Open Middle Math

Directions: Using the integers -9 to 9 at most one time each, place an integer in each box to make two values: one that is positive and one that is negative. You may reuse all the integers each time. Source: Robert Kaplinsky in Open Middle Math

Directions: Using the integers -9 to 9 at most one time each, place an integer in each box to make the greatest possible product. Source: Robert Kaplinsky in Open Middle Math

Directions: Using the integers -9 to 9 at most one time each, place an integer in each box to make two products: one where the product is positive and one where the product is negative. You may reuse all the integers for each product. Source: Robert Kaplinsky in Open Middle Math

Directions: Using the digits 1 to 9 at most one time each, place a digit in each box to make five true number sentences. You may reuse all the digits for each number sentence. Source: Robert Kaplinsky in Open Middle Math