| Adding and subtracting decimals word problems | |
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| Description | |
| Exercise Name: | Adding and subtracting decimals word problems |
| Math Missions: | 6th grade (U.S.) Math Mission, Arithmetic essentials Math Mission, Pre-algebra Math Mission, Mathematics I Math Mission |
| Types of Problems: | 2 |
The Adding and subtracting decimals word problems exercise appears under the 6th grade (U.S.) Math Mission, Arithmetic essentials Math Mission, Pre-algebra Math Mission and Mathematics I Math Mission. This exercise involves basic word problems to practice addition and subtraction operations on decimals.
Types of Problems[]
There are two types of problems in this exercise:
- Adding word problem: This problem describes a situation that asks for a total amount or some other addition problem. The student is asked to find the correct sum and write it in the box.
Adding word problem
- Subtracting word problem: This problem describes a situation that involves a difference or other subtraction type problem. The student is asked to find the correct difference and write it in the box.
Subtracting word problem
Strategies[]
This exercise is easy to get accuracy badges and speed badges because the problem types repeat at a fairly fast rate, the same type of total and same type of difference. Also, the numbers were often easy to work with making it possible to do these without a calculator and thereby increase speed.
- When adding and subtracting decimals on paper, be sure to line up the decimal points.
- The numbers on the problems are not particular large and borrowing and carrying does not happen on every problem, read it first to see if you can answer without writing it out to increase speed.
- Phrases like "how much faster" and "total" can be used as predictors of the operation needed to perform the problem.
Real-life Applications[]
- Decimals appear in every-day media to display information to consumers.
- Decimals are very common in shopping. Price tags, food labels, and receipts all contain decimals.
- At gas pumps, decimals are used to show how much gas is pumped and much it costs per gallon.