Posted by Cody on Monday, October 19, 2009 at 12:31pm.
Keith wrote the expression 10d to represent the number of dimes in d dollars. Is Keith's expression correct? Explain.

Math  Ms. Sue, Monday, October 19, 2009 at 12:36pm
Right.

Math  Cody, Monday, October 19, 2009 at 12:47pm
Can you explain? I was thinking that d/10 would be the answer, since there are 10 dimes in a dollar. If the expression was 10d wouldn't that mean 10 dimes X 1 dollar?

Math  Ms. Sue, Monday, October 19, 2009 at 1:24pm
10 dimes = $1.00
20 dimes = $2.00
30 dimes = $3.00
So 
10 times 3 = 30
10 times 4 = 40

Math  leah, Wednesday, March 27, 2013 at 5:41pm
5 doller bills and 3 dimes
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