Posted by **Amelia** on Wednesday, December 16, 2009 at 6:32pm.

EXTENDING THE LESSON If you add any two rational numbers, the sum is always a rational number. So, the set of rational numbers is closed under addition. Is the set of rational numbers closed under subtraction. multiplication,and division also? Explain.

- 6TH GR. ALGEBRA -
**Marth**, Wednesday, December 16, 2009 at 7:00pm
Can you think of any two numbers that, when subtracted, multiplied, or divided, yield a number that is not rational? For example, take the rational numbers 2 and 3.

2 - 3 = -1

2 * 3 = 6

2 / 3 = 2/3

Are any of the results irrational? And are there any other rational numbers that yield different results?

(I assume a formal proof is not requested).

- 6TH GR. ALGEBRA -
**Amelia**, Wednesday, December 16, 2009 at 7:19pm
Can you think of any two numbers that, when subtracted, multiplied, or divided, yield a number that is not rational? For example, take the rational numbers 2 and 3.

2 - 3 = -1

2 * 3 = 6

2 / 3 = 2/3

Are any of the results irrational? And are there any other rational numbers that yield different results?

yes this one 2 * 3 = 6

- 6TH GR. ALGEBRA -
**HOODRAT 101**, Thursday, March 31, 2011 at 9:52am
YALL ARE STUPID ASS 6TH GRADERS ITS 3 4 5 6 7 8 9 10 11 12 13 131 31 3 1212 65465 0 654 654 654 654 65132 1 654 62 165 65 161 215 4 651 231 3 DUH!!!!!!!!!!!!

## Answer this Question

## Related Questions

- 9th grade - Name the set(s) of numbers to which 1.68 belongs. a. rational ...
- math - What is the best sequence of names to identify this set of numbers? (1 3/...
- math- please help - What is the best sequence of names to identify this set of ...
- Algebra 1 - Which statement about real numbers is true? Across the heading says...
- Math - Identify all sets to which the number 3 belongs A. Whole numbers, ...
- Algebra - 23. The ___ axis represents the independent variable. X? 21. Name the ...
- Math Word Problem - Let A be the set containing all rational numbers that are ...
- math - 1. Which of the following numbers is an example of an integer? a. -15 b. ...
- math - Which statement is true? A. All irrational numbers are also rational ...
- math - HELP. Help I have to decide whether these are rational or irrational. ....

More Related Questions