

Wilber needs 4 1/2 packages of valentines for his school, and 2 2/5 packages of
valentines for his equestrian class. Using a number line Wilber calculated the amount of packages he
would need altogether. Order the steps Wilber used to estimate the total.
a.  If I add 4 1/2 and 2 1/2, I get 7 whole
packages.  b.  I know that the total is a little less than 7 whole
packages.  c.  On a number line I estimate that 4 1/2 is half way between 4
and 5.  d.  On the number line I add 4 1/2 and 2 2/5 to get 6
9/10.   
