I can make reasonable estimates to a situation using whole numbers and fractions. Rachel A. Darnell

To estimate a fraction, you must decide one of the following. IS THE FRACTION CLOSEST TO 0 OR 1/2 OR 1 SOMETIMES A PICTURE HELPS

4/12 should be rounded to _________ 6/7 should be rounded to _________ 0 1 1/2 Round each fraction to 0 or 1/2 or /2 6/10 should be rounded to _________ 0 11/ /12 should be rounded to _________ 0

Round a fraction to 0 or 1/2 or 1 2/12 should be rounded to _________ 0 1 1/ /12 should be rounded to _________ 3

Janice had 7 and 3/4 cups of flour in a container. She used 3 and 1/4 cups to make cookies. About how much did she have LEFT in the container after making cookies? Step 1 - Round the mixed numbers to the nearest whole number. Step 2 - Decide on an operation Step 3 - Do the computation Step 4 - Subtract using the real numbers. Step 5 - Compare your real answer with the estimate and decide if it is reasonable. 7 3/4 rounds to3 1/4 rounds to SUBTRACT = 5 cups of flour 7 3/ /4 = 4 2/4 or 4 and a half cups of flour REASONABLE 83

Three friends had a slumber party. Greg ate 3 and 1/8 candy bars, Brad ate 2 and 6/8 candy bars and Warren ate 1 and 7/8 candy bars. About how many candy bars did they eat altogether? Step 1 - Round the mixed numbers to the nearest whole number Step 2 - Decide on an operation Step 3 - Do the computation Step 4 - Add using the real numbers. Step 5 - Compare your real answer with the estimate and decide if it is reasonable. 3 1/8 rounds to2 6/8 rounds to1 7/8 rounds to ADD (why) = 8 candy bars 3 1/ /8 = /8 = 7 6/8 candy bars REASONABLE 3 3 2

Remember you estimate should always be __________________ REASONABLE