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Adding and subtracting negative fractions, decimals, and percents
Adding and subtracting rational numbers 256
Description
Exercise Name: Adding and subtracting negative fractions, decimals, and percents
Math Missions: 7th grade (U.S.) Math Mission, Arithmetic essentials Math Mission, Pre-algebra Math Mission, Mathematics I Math Mission
Types of Problems: 1

The Adding and subtracting negative fractions, decimals, and percents exercise appears under the 7th grade (U.S.) Math Mission, Arithmetic essentials Math Mission, Pre-algebra Math Mission and Mathematics I Math Mission. This exercise performs arithmetic operations on fractions, decimals and percentages at the same time.

Types of Problems

There is one type of problem in this exercise:

  1. Simplify the expression: This problem has and arithmetic problem that may involve fractions, decimals and/or percentages. The user is asked to find the correct simplified answer for the problem and type it in the space provided.
    Aasnfdap1

    Simplify the expression

Strategies

Knowledge of the standard rules for adding fractions and decimals can assist here, as would an ability to convert between decimals, fractions and percentages at will, especially if user wants accuracy badges and speed badges

  1. To increase speed it is recommended that the student decide which form they prefer, and convert all pieces into that form. For example, the fractions used often convert nicely into decimals and the answer can be given in any form.
  2. Research indicates all final answers will be terminating decimals (no rounding needed).
  3. A calculator could increase speed but violates the spirit of the problem.

Real-life Applications

  1. Fractions, decimals and percents appear in every-day media to display information to consumers.
  2. Decimals are very common in shopping. Price tags, food labels, and receipts all contain decimals.
  3. At gas pumps, decimals are used to show how much gas is pumped and much it costs per gallon.

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