Interpreting negative numbers | |
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Description | |
Exercise Name: | Interpreting negative numbers |
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 Interpreting negative numbers 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 provides practice with real life contexts of integers.
Types of Problems
There are two types of problems in this exercise:
- Write the answer as either positive or negative: This problem provides a word problem where the number can be interpreted as positive or negative. The user is expected to determine the correct interpretation and type it in the space provided.
- Interpret the balance correctly: This problem provides a situational word problem and a value for the problem. The user is asked to select the correct interpretation of that value in the context of the problem. The user will select from a multiple choice list.
Strategies
A working model of negatives (for example a number line and viewing opposite as reflection over zero) can help with this problem.
- On the first problem type, the interpretation is almost always clear from the final sentence. Write the number and the sign that the sentence is implying.
- In the first twenty problems, the Interpret the balance correctly problem always asked for an interpretation of a zero balance. There is no reason this will stay, but at least at this time it means one needs to find the interpretation that implies "no change."
Real-life Applications
- Negative numbers are used for measuring temperatures.
- Negative numbers are used to describe values on a scale that goes below zero, such as the Celsius and Fahrenheit scales for temperature.