Posted by **CeCe** on Tuesday, October 6, 2009 at 9:32pm.

Ian multiplied a number by 5. He then multiplied that product by 2. What digit is in the ones place of the final product?

- MATH -
**brandon**, Tuesday, October 6, 2009 at 9:35pm
zero!

when you multiply by five, you'll always get a number ending in 0 or 5. multiplying by two means if you get one ending in 5, it gets timesed by 2 and equals zero anyways

try it with any number

- MATH -
**brandi**, Wednesday, January 23, 2013 at 6:07pm
thanks brandon,

- MATH -
**kimberly**, Wednesday, February 20, 2013 at 9:54pm
zero

- MATH -
**Di angelo**, Monday, April 22, 2013 at 2:44am
The answer is zero

- MATH -
**Stephanie**, Tuesday, October 15, 2013 at 7:47pm
The answer is 0

- MATH -
**Lini**, Friday, February 14, 2014 at 2:32pm
thanks makes sense

- MATH -
**Anonymous**, Thursday, September 29, 2016 at 5:49pm
0 because just like Brandon showed you

- MATH -
**Anonymous**, Thursday, September 29, 2016 at 5:49pm
0 because just like Brandon showed you

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