Wednesday

October 1, 2014

October 1, 2014

Posted by **Gabby ( 5 grade)** on Monday, January 30, 2012 at 4:10pm.

- math -
**Reiny**, Monday, January 30, 2012 at 4:14pmI would divide it out and see.

or

write down the number without the last digit

29

subtract twice the digit you skipped

29

-2

----

27

is 27 divisilbe by 7 ?

no ? , then neither was 291

for large numbers checking for divisibility by 7,

repeat the above process until you can tell.

Not very practical, but it works !!!

- math -
**Gabby ( 5 grade)**, Monday, January 30, 2012 at 4:18pmwhy 2 if the end digit is 1?

- math -
**Reiny**, Monday, January 30, 2012 at 4:21pmnotice I said, "twice" the number skipped.

2x1 = 2

- math -
**Gabby ( 5 grade)**, Monday, January 30, 2012 at 4:24pmi dont get it i want ms sue to help me!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

- math -
**Ms. Sue**, Monday, January 30, 2012 at 4:27pm<g>

Reiny is a REAL math teacher; I'm not.

I'd just divide 291 by 7.

- math -
**Gabby ( 5 grade)**, Tuesday, January 31, 2012 at 3:55pmWOW I BELIEVED IN YOU:P

**Answer this Question**

**Related Questions**

Math - Use the Factor Theorem to determine whether x-3 is a factor of P(x)=2x^3-...

Algebra - Use the Factor Theorem to determine whether x+2 is a factor of P(x)=2x...

Quick math question - Can anyone give me a link to a free online algebra test ...

Science - A science teacher was curious to see whether offering money for good ...

Science - A science teacher was curious to see whether offering money for good ...

VERY URGENT SCIENCE - A science teacher was curious to see whether offering ...

IB MATH STUDIES IA - I am finding whether men or women are smarter. I am doing a...

Statistics!!! - b. The correlation between the number correct on a math test and...

Chemistry - Calculate the enthalpy change, ∆H in kJ, for the reaction H2O(...

math - how would you simplify y= (x^5-32)/(x-2)? I know that it would equal (x^5...