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April 24, 2014

Posted by **Delilah** on Friday, October 5, 2012 at 7:26pm.

Which of these numbers can be classified as both real and irrational?

5.858585858

63.4

square root 21

square root 36

2.

Which is both a real number and an integer?

23

1 over 4

square root 27

3.402538

3.

Which of these numbers is classified as both real and rational?

square root 17

square root 23

square root 9

square root 2

4.

Which statement is false?

The number zero is a rational number.

Some irrational numbers are also rational numbers.

Every irrational number is a real number.

Every integer is a rational number.

My answers:

1. square root 21

2. 23

3. square root 9

4. Some irrational numbers are also rational numbers.

Are they correct? Thanks.

- 7th grade math Ms.Sue please -
**Ms. Sue**, Friday, October 5, 2012 at 7:39pmSorry, Delilah, but I don't know. When I learned math in the Dark Ages over 60 years ago, we didn't study these concepts.

- 7th grade math Ms.Sue please -
**Ms. Sue**, Friday, October 5, 2012 at 7:45pmEven when I occasionally taught a section of 7th grade math over 20 years ago, irrational and real numbers were not part of our curriculum.

- 7th grade math Ms.Sue please -
**Delilah**, Friday, October 5, 2012 at 7:45pmThat's ok, thanks! Hahaha Dark Ages..... :)

- 7th grade math Ms.Sue please -
**Delilah**, Friday, October 5, 2012 at 7:47pmThanks anyway!

- 7th grade math Ms.Sue please -
**Reiny**, Friday, October 5, 2012 at 7:47pmall your answers are correct, good job

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