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Unit 2 Lesson 8 Part 1: Rounding to the Nearest Thousand Copyright © 2009 Kelly Mott.

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Presentation on theme: "Unit 2 Lesson 8 Part 1: Rounding to the Nearest Thousand Copyright © 2009 Kelly Mott."— Presentation transcript:

1 Unit 2 Lesson 8 Part 1: Rounding to the Nearest Thousand Copyright © 2009 Kelly Mott

2 Unit 2 Lesson 8 Part 1: Rounding to the Nearest Thousand Copyright © 2009 Kelly Mott

3 Part 1: Rounding with a Number Line Copyright © 2009 Kelly Mott

4 What is 1,300 rounded to the nearest thousand? Find 1,300 on the number line. Put a dot. Is 1,300 closer to 1,000 or 2,000? ___________ Answer: 1,300 rounded to the nearest thousand is _____________________ 1,000 1,100 1,200 1,300 1,400 1,500 1,600 1,700 1,800 1,900 2,000 Copyright © 2009 Kelly Mott Round to the Nearest Thousand

5 What is 1,800 rounded to the nearest thousand? Find 1,800 on the number line. Put a dot. Is 1,800 closer to 1,000 or 2,000? ___________ Answer: 1,800 rounded to the nearest thousand is _____________________ 1,000 1,100 1,200 1,300 1,400 1,500 1,600 1,700 1,800 1,900 2,000 Copyright © 2009 Kelly Mott Round to the Nearest Thousand

6 What is 1,500 rounded to the nearest thousand? Find 1,500 on the number line. Put a dot. Is 1,500 closer to 1,000 or 2,000? ___________ Answer: 1,500 rounded to the nearest thousand is _____________________ 1,000 1,100 1,200 1,300 1,400 1,500 1,600 1,700 1,800 1,900 2,000 Copyright © 2009 Kelly Mott Round to the Nearest Thousand *Hint: When we have 5 or more, we round up.

7 Copyright © 2009 Kelly Mott

8 Part 2: Rounding without a Number Line Copyright © 2009 Kelly Mott

9 Steps to Round a Number: STEPS: 1.Underline the place you are rounding to. 2.Circle the number to the right. 3.If the number to the right is 0, 1, 2, 3, or 4, then the underlined number stays the same. 4.If the number to the right is 5, 6, 7, 8, or 9, then the underlined number needs to go up 1 more number. 5.Every number to the right of the underlined number becomes a zero. Copyright © 2009 Kelly Mott Round to the nearest thousand: 2,672 Hint for the Circled Number: 4 or less just ignore. 5 or more, add 1 more.

10 Practice # 1: STEPS: 1.Underline the place you are rounding to. 2.Circle the number to the right. 3.If the number to the right is 0, 1, 2, 3, or 4, then the underlined number stays the same. 4.If the number to the right is 5, 6, 7, 8, or 9, then the underlined number needs to go up 1 more number. 5.Every number to the right of the underlined number becomes a zero. Copyright © 2009 Kelly Mott Round to the nearest thousand: 4,833 Hint for the Circled Number: 4 or less just ignore. 5 or more, add 1 more.

11 Practice # 2 : STEPS: 1.Underline the place you are rounding to. 2.Circle the number to the right. 3.If the number to the right is 0, 1, 2, 3, or 4, then the underlined number stays the same. 4.If the number to the right is 5, 6, 7, 8, or 9, then the underlined number needs to go up 1 more number. 5.Every number to the right of the underlined number becomes a zero. Copyright © 2009 Kelly Mott Round to the nearest thousand: 6,117 Hint for the Circled Number: 4 or less just ignore. 5 or more, add 1 more.

12 Practice # 3: STEPS: 1.Underline the place you are rounding to. 2.Circle the number to the right. 3.If the number to the right is 0, 1, 2, 3, or 4, then the underlined number stays the same. 4.If the number to the right is 5, 6, 7, 8, or 9, then the underlined number needs to go up 1 more number. 5.Every number to the right of the underlined number becomes a zero. Copyright © 2009 Kelly Mott Round to the nearest thousand: 7,438 Hint for the Circled Number: 4 or less just ignore. 5 or more, add 1 more.

13 Practice # 4 : STEPS: 1.Underline the place you are rounding to. 2.Circle the number to the right. 3.If the number to the right is 0, 1, 2, 3, or 4, then the underlined number stays the same. 4.If the number to the right is 5, 6, 7, 8, or 9, then the underlined number needs to go up 1 more number. 5.Every number to the right of the underlined number becomes a zero. Copyright © 2009 Kelly Mott Round to the nearest thousand: 3,872 Hint for the Circled Number: 4 or less just ignore. 5 or more, add 1 more.

14 Practice # 5: STEPS: 1.Underline the place you are rounding to. 2.Circle the number to the right. 3.If the number to the right is 0, 1, 2, 3, or 4, then the underlined number stays the same. 4.If the number to the right is 5, 6, 7, 8, or 9, then the underlined number needs to go up 1 more number. 5.Every number to the right of the underlined number becomes a zero. Copyright © 2009 Kelly Mott Round to the nearest thousand: 5,306 Hint for the Circled Number: 4 or less just ignore. 5 or more, add 1 more.

15 Practice # 6: STEPS: 1.Underline the place you are rounding to. 2.Circle the number to the right. 3.If the number to the right is 0, 1, 2, 3, or 4, then the underlined number stays the same. 4.If the number to the right is 5, 6, 7, 8, or 9, then the underlined number needs to go up 1 more number. 5.Every number to the right of the underlined number becomes a zero. Copyright © 2009 Kelly Mott Round to the nearest thousand: 1,902 Hint for the Circled Number: 4 or less just ignore. 5 or more, add 1 more.

16 Practice # 7: STEPS: 1.Underline the place you are rounding to. 2.Circle the number to the right. 3.If the number to the right is 0, 1, 2, 3, or 4, then the underlined number stays the same. 4.If the number to the right is 5, 6, 7, 8, or 9, then the underlined number needs to go up 1 more number. 5.Every number to the right of the underlined number becomes a zero. Copyright © 2009 Kelly Mott Round to the nearest thousand: 8,299 Hint for the Circled Number: 4 or less just ignore. 5 or more, add 1 more.

17 Practice # 8: STEPS: 1.Underline the place you are rounding to. 2.Circle the number to the right. 3.If the number to the right is 0, 1, 2, 3, or 4, then the underlined number stays the same. 4.If the number to the right is 5, 6, 7, 8, or 9, then the underlined number needs to go up 1 more number. 5.Every number to the right of the underlined number becomes a zero. Copyright © 2009 Kelly Mott Round to the nearest thousand: 2,192 Hint for the Circled Number: 4 or less just ignore. 5 or more, add 1 more.

18 Practice # 9: STEPS: 1.Underline the place you are rounding to. 2.Circle the number to the right. 3.If the number to the right is 0, 1, 2, 3, or 4, then the underlined number stays the same. 4.If the number to the right is 5, 6, 7, 8, or 9, then the underlined number needs to go up 1 more number. 5.Every number to the right of the underlined number becomes a zero. Copyright © 2009 Kelly Mott Round to the nearest thousand: 6,852 Hint for the Circled Number: 4 or less just ignore. 5 or more, add 1 more.

19 Practice # 10: STEPS: 1.Underline the place you are rounding to. 2.Circle the number to the right. 3.If the number to the right is 0, 1, 2, 3, or 4, then the underlined number stays the same. 4.If the number to the right is 5, 6, 7, 8, or 9, then the underlined number needs to go up 1 more number. 5.Every number to the right of the underlined number becomes a zero. Copyright © 2009 Kelly Mott Round to the nearest thousand: 7,096 Hint for the Circled Number: 4 or less just ignore. 5 or more, add 1 more.

20 Practice # 11: STEPS: 1.Underline the place you are rounding to. 2.Circle the number to the right. 3.If the number to the right is 0, 1, 2, 3, or 4, then the underlined number stays the same. 4.If the number to the right is 5, 6, 7, 8, or 9, then the underlined number needs to go up 1 more number. 5.Every number to the right of the underlined number becomes a zero. Copyright © 2009 Kelly Mott Round to the nearest thousand: 8,584 Hint for the Circled Number: 4 or less just ignore. 5 or more, add 1 more.

21 Practice # 12: STEPS: 1.Underline the place you are rounding to. 2.Circle the number to the right. 3.If the number to the right is 0, 1, 2, 3, or 4, then the underlined number stays the same. 4.If the number to the right is 5, 6, 7, 8, or 9, then the underlined number needs to go up 1 more number. 5.Every number to the right of the underlined number becomes a zero. Copyright © 2009 Kelly Mott Round to the nearest thousand: 1,199 Hint for the Circled Number: 4 or less just ignore. 5 or more, add 1 more.

22 Practice # 13 : STEPS: 1.Underline the place you are rounding to. 2.Circle the number to the right. 3.If the number to the right is 0, 1, 2, 3, or 4, then the underlined number stays the same. 4.If the number to the right is 5, 6, 7, 8, or 9, then the underlined number needs to go up 1 more number. 5.Every number to the right of the underlined number becomes a zero. Copyright © 2009 Kelly Mott Round to the nearest thousand: 2,970 Hint for the Circled Number: 4 or less just ignore. 5 or more, add 1 more.

23 Practice # 14: STEPS: 1.Underline the place you are rounding to. 2.Circle the number to the right. 3.If the number to the right is 0, 1, 2, 3, or 4, then the underlined number stays the same. 4.If the number to the right is 5, 6, 7, 8, or 9, then the underlined number needs to go up 1 more number. 5.Every number to the right of the underlined number becomes a zero. Copyright © 2009 Kelly Mott Round to the nearest thousand: 3,888 Hint for the Circled Number: 4 or less just ignore. 5 or more, add 1 more.

24 Practice # 15 : STEPS: 1.Underline the place you are rounding to. 2.Circle the number to the right. 3.If the number to the right is 0, 1, 2, 3, or 4, then the underlined number stays the same. 4.If the number to the right is 5, 6, 7, 8, or 9, then the underlined number needs to go up 1 more number. 5.Every number to the right of the underlined number becomes a zero. Copyright © 2009 Kelly Mott Round to the nearest thousand: 9,104 Hint for the Circled Number: 4 or less just ignore. 5 or more, add 1 more.

25 Copyright © 2009 Kelly Mott

26 Does this make sense? Copyright © 2009 Kelly Mott

27 HOMEWORK Teacher Worksheet: Rounding to Nearest Thousand Worksheet Math Steps Pages: none Re-teach Page: none Copyright © 2009 Kelly Mott

28 You can use the Rounding Pyramid: 5 1 2 8 4 0 9 3 7 6 1.Underlined number rounds up one 2.Add the zeros 1.Underlined number stays the same 2.Add the zeros Copyright © 2009 Kelly Mott

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