1. Round to the nearest ten Round to the nearest hundred Estimate products by rounding to the nearest ten or hundred Estimating by Rounding

2. On average, a refrigerator door is opened 37 times each day in June. The Forrest family opened their refrigerator door about 33 times a day in June. About how many fewer times in June is the Forrest family’s refrigerator door opened than the average refrigerator door? Application Problem

3. Retell Month of June Fridge opened - Average - 37 times per day Forrest - 33 times per day Close the refrigerator! Explain Illustrate Compute 37 – 33 = 4 30 x 4 = 120

4. to write a number to a give amount of accuracy to give a rough answer that may be a little more or a little less than the actual results an answer that is not exactly correct but is close enough to be useful in working out a product a guide to how accurate the rounding needs to be exact or correct answer Estimate Round Approximate Rounding to the nearest… Actual Vocabulary to review -

5. 0 10 20 30 40 50 60 70 80 90 100 27 0 10 20 30 40 50 60 5 15 25 35 45 55 Number lines

6. Independent Practice You may use a number line Round the following to the nearest ten. 1. 3 x 542. 26 x 9 Round the following to the nearest hundred. 3. 365 x 34. 5 x 439 Write and solve a problem of your own. 5.

7. Estimate the product by finding the two numbers the exact answer is between. Round to the nearest ten or hundred 6. 65 x 7 7. 73 x 3 8. 341 x 6 9. 860 x 8 Independent Practice 60 x 7 = 420 and 70 x 7 = 490 70 x 3 = 210 and 80 x 3 = 240 300 x 6 = 1800 and 400 x 6 = 2400 800 x 8 = 6400 and 900 x 8 = 7200

8. You have been asked to help students with rounding to the tens place and the hundreds place in the third grade class. Write a three-digit number. Explain in words, illustrations, and numbers how to round it to the hundreds place. Math Logs