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

2. 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 5 6 3 11 1 3 7 8 2 5 1 8 10 11 10 12

3. 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 1 0 1 1/2 6/10 should be rounded to _________ 0 11/2 1 0 1 1/12 should be rounded to _________ 0

4. Round a fraction to 0 or 1/2 or 1 2/12 should be rounded to _________ 0 1 1/2 0 2 10/12 should be rounded to _________ 3

5. 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 8 - 3 = 5 cups of flour 7 3/4 - 3 1/4 = 4 2/4 or 4 and a half cups of flour REASONABLE 83

6. 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) 3 + 3 + 2 = 8 candy bars 3 1/8 + 1 7/8 = 5 5 + 2 6/8 = 7 6/8 candy bars REASONABLE 3 3 2

7. Remember you estimate should always be __________________ REASONABLE