2. Notes Over 3 – 1 Round each number to the given place value. 1. Round 8.7398 to the nearest:7 a. tenth 8.7 Since the 3 in the hundredths place is lower than 5, the 7 in the tenths place stays a 7. Drop everything past the 7.

3. Notes Over 3 – 1 Round each number to the given place value. 1. Round 8.7398 to the nearest: 8 a. tenth 8.7 Since the 3 in the hundredths place is lower than 5, the 7 in the tenths place stays a 7. Drop everything past the 7. b. integer 9 Since the 7 in the tenths place is higher than 5, the 8 in the ones place becomes a 9. Drop everything past the decimal.

4. Notes Over 3 – 1 Round each number to the given place value. 2. Round 7,098.56 to the nearest:0 a. hundred 7,100 Since the 9 in the tens place is higher than 5, the 0 in the hundreds place becomes a 1. Everything behind the 1 becomes a 0 up to the decimal.

5. Notes Over 3 – 1 Round each number to the given place value. 2. Round 7,098.56 to the nearest: 5 a. hundred 7,100 Since the 9 in the tens place is higher than 5, the 0 in the hundreds place becomes a 1. Everything behind the 1 becomes a 0 up to the decimal. b. tenth 7,098.6 Since the 6 in the hundredths place is higher than 5, the 5 in the tenths place becomes a 6. Drop everything past the 5.

6. Notes Over 3 – 1 3. Estimate by Rounding. a. $4.89 $9 $3.87  $5 $4  b. 453.56 220 230.07  450 230 

7. Notes Over 3 – 1 4. Estimate by Front-End Estimation. a. 14.39 13 79.102  4 9  b. 2.298 1.1 7.750 .3.8  1 7 80  = 93 2 7 9  = 10.1

8. Notes Over 3 – 1 5. Estimate by Clustering. a. $4.50 + $5.20 + $5.55 Since all of them are close to $5, you can multiply: $5 X 3 = $15 b. 26.7 + 26.2 + 24.52 + 25.25 +23.9 Since all of them are close to 25, you can multiply: 25 X 5 = 125

9. Notes Over 3 – 2 1. Estimate by Rounding. 6.43 4.7  6 5  = 30

10. Notes Over 3 – 2 2. Joshua bought 3 yards of fabric to make a dress. The fabric cost $5.65/yd. The clerk said his total was $14.95 before tax. Did the clerk make a mistake? Explain. 5.65 3  6 3  = 18 5 3  = 15 It should have cost between $15 and $18.

11. Notes Over 3 – 2 Estimate by using Compatible Numbers. 3. 38.9 1.79 38 2 = 19     4. 82.52 4.25 84 4 = 21    

12. Notes Over 3 – 2 30 6 = 5   5. Is 3.29 a reasonable quotient for 31.423 5.94? Explain. It should have been closer to 5.

13. Page 125, 3 – 1 #1-13, 14-46 even Page 129, 3 – 2 #1-8, 10-30 even