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Writing proportions
Writing proportions 256
Description
Exercise Name: Writing proportions
Math Missions: 7th grade (U.S.) Math Mission, Algebra basics Math Mission, Mathematics I Math Mission
Types of Problems: 1

The Writing proportions exercise appears under the 7th grade (U.S.) Math Mission, Algebra basics Math Mission and Mathematics I Math Mission. This exercise determines if users are able to correctly interpret a word problem into an appropriate proportion question.

Types of Problems

There is one type of problem in this exercise:

  1. Select correct proportion: This problem provides a situation where the user is expected to find the correct answer by setting up an appropriate proportion. There are several proportions provided and the user is expected to select the proportion that will work.
    Wp1

    Select correct proportion

Strategies

Cross multiplication techniques can help to provide a user and advantage on this exercise, but should not necessarily be considered vital.

  1. To ensure correctness, it is possible to find the correct answer and then solve each provide equation to find the one that works.
  2. This one problem can be done more quickly if the user is able to "match" the part to whole, as in a standard proportion.

Real-life Applications

  1. Businesses can use proportions to figure out how much money they will earn if they sell more products.

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