1. How do you round 42,783 to the nearest thousand? 4 2, 7 8 3 l l l l l l l l l l l 42,783 42,000 43,000

2. In this lesson you will learn how to use a number line to round numbers to a specified place within a number.

3. Let’s Review l l l l l l l l l l l 783 700 800 Benchmark Numbers Midpoint 750

4. Let’s Review l l l l l l l l l l l 5000 6000 5500 5000 6000 5500 5001 - 5499 5500 - 5999

5. Let’s Review A Common Mistake Thinking that the increments on a number line always signify counting by ones. l l l l l l l l l 300 400 310 320 330 340 350 360 370 380 390

6. Let’s Review A Common Mistake Misapplying the concept of “rounding down”. For example: 4,392 = 3,392 4,392 = 4,000

7. Let’s Review Core Lesson Round 42,783 to the nearest hundred. 4 2, 7 8 3 l l l l l l l l l l l 42,700 42,800 The number rounds up.

8. Let’s Review Core Lesson Round 42,783 to the nearest ten. 4 2, 7 8 3 l l l l l l l l l l l 42,780 42,790 The number rounds down.

9. Let’s Review Core Lesson Round 365,721 to the nearest ten thousand. 3 6 5, 7 2 1 l l l l l l l l l l l 360,000 370,000 The number rounds up.

10. In this lesson you have learned how to use a number line to round numbers to a specified place within a number.

11. Let’s Review Guided Practice Round 28,578 to the nearest thousand.

12. Let’s Review Extension Activities In your math journal round 684,528 in multiple ways. Round to the nearest hundred thousand, ten thousand, thousand, hundred, and ten.

13. Let’s Review Extension Activities Search the newspaper or a magazine for a variety of numbers. Cut out each number and glue them to a piece of paper. Round each number to a variety of places. For example: 72,468 = 70,000 72,000 72,500 72,470

14. Let’s Review Quick Quiz Round 1,704,352 to the nearest thousand.

15. Let’s Review Quick Quiz Round 265,098 to the nearest ten thousand.