median
don steward
mathematics teaching 10 ~ 16
Tuesday 25 May 2010
reversals
how many 2-digit numbers are reversed when you:
(a) add 1 and then divide by 2?
(b) subtract 2 and then divide by 2?
(c) subtract 10 and then divide by 2?
(d) divide by 2 and then multiply by 9?
No comments:
Post a Comment
Newer Post
Older Post
Home
Subscribe to:
Post Comments (Atom)

## No comments:

Post a Comment