PartPartWhole Word Problems

1
Part-Part-Whole Word Problems
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• Remember that a some and some more problem has
  an addition pattern.
• Part-part-whole is another type.

3

• Part part whole
• Sometimes the parts are expressed as fractions or
  percents.

4
Read and recognize the problem type.

• One third of the students earned a B on the test.
  What fraction of the students did not earn a B
  on the test?
• This is a part-part-whole problem.

5
Write an equation for the given information.

• 1/3 of the students earned a B.
• It may seem as though we are given only one
  number, 1/3. We need to remember that the whole
  class of students is 3/3.
• We will use NB to sand for not B students.

6

• 1/3 NB 3/3
• We find the missing number NB, by subtracting.