Entries "My entries":
Thursday, November 30, 2006
Estimating sums and Differences
first, round the fractions to the nearest half. Then add or subract.
EXAMPLE # 1:5/8+11/12 rounds to 1/2+1.then,1/2+1=1 1/2
EXample # 2:5/6-3/8. It rounds to 1+1/2.Then, 1+1/2=1 1/2