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Home > CC2 > Chapter 2 > Lesson 2.2.4 > Problem 2-81


Copy and complete each of the Diamond Problems below. The pattern used in the Diamond Problems is shown at right.  Homework Help ✎

2-81 Diamond Problems

  1. 2-81a Diamond Problem

    2-81a. Answer diagram

    2-81a Answer Diagram

    Find the number that will complete the expression  .

    With the number in red you complete the diamond by finding the product of the two numbers.

    The numbers and complete the diamond.

  1. 2-81b Diamond Problem

    This problem is very similar to part (a). Try solving the problem on your own. What added to  gives ?

    The missing numbers are and .

  1. 2-81c Diamond Problem

    Use parts (a) and (b) as guides for solving this problem.
    You may also want to try guessing and checking for possible numbers to complete the boxes, since you cannot begin with subtraction or division.

  1. 2-81d Diamond Problem

    To complete the diamond, find the sum and product of the two given numbers.