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Unit 2 Lesson 8 Part 3: Rounding to the Nearest Hundred (4 Digits) Copyright © 2009 Kelly Mott

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Unit 2 Lesson 8 Part 3: Rounding to the Nearest Hundred (4 Digits) Copyright © 2009 Kelly Mott

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Part 1: Rounding to the Nearest Ten (3 Digits) Number Line Copyright © 2009 Kelly Mott

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What is 1,640 rounded to the nearest hundred? Find 1,640 on the number line. Put a dot. Is 1,640 closer to 1,600 or 1,700? ___________ Answer: 1,640 rounded to the nearest hundred is _____________________ 1,600 1,610 1,620 1,630 1,640 1,650 1,660 1,670 1,680 1,690 1,700 Copyright © 2009 Kelly Mott Round to the Nearest Hundred

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What is 2,890 rounded to the nearest hundred? Find 2,890 on the number line. Put a dot. Is 2,890 closer to 2,800 or 2,900? ___________ Answer: 2,890 rounded to the nearest hundred is _____________________ 2,800 2,810 2,820 2,830 2,840 2,850 2,860 2,870 2,880 2,890 2,900 Copyright © 2009 Kelly Mott Round to the Nearest Hundred

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What is 6,750 rounded to the nearest hundred? Find 6,750 on the number line. Put a dot. Is 6,750 closer to 6,700 or 6,800? ___________ Answer: 6,750 rounded to the nearest hundred is _____________________ 6,700 6,710 6,720 6,730 6,740 6,750 6,760 6,770 6,780 6,790 6,800 Copyright © 2009 Kelly Mott Round to the Nearest Hundred *Hint: When we have 5 or more, we round up.

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Copyright © 2009 Kelly Mott

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

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Practice # 1: STEPS: 1.Underline the place you are rounding to. 2.Write down the number(s) to the left of the underlined digit. 3.Circle the number to the right. 4.If the number to the right is 0, 1, 2, 3, or 4, then the underlined number stays the same. 5.If the number to the right is 5, 6, 7, 8, or 9, then the underlined number needs to go up 1 more number. 6.Every number to the right of the underlined number becomes a zero. Copyright © 2009 Kelly Mott Round to the nearest hundred: 4,633 Hint for the Circled Number: 4 or less just ignore. 5 or more, add 1 more.

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Practice # 2 : STEPS: 1.Underline the place you are rounding to. 2.Write down the number(s) to the left of the underlined digit. 3.Circle the number to the right. 4.If the number to the right is 0, 1, 2, 3, or 4, then the underlined number stays the same. 5.If the number to the right is 5, 6, 7, 8, or 9, then the underlined number needs to go up 1 more number. 6.Every number to the right of the underlined number becomes a zero. Copyright © 2009 Kelly Mott Round to the nearest hundred: 6,197 Hint for the Circled Number: 4 or less just ignore. 5 or more, add 1 more.

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

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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 hundred: 3,872 Hint for the Circled Number: 4 or less just ignore. 5 or more, add 1 more.

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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 hundred: 5,306 Hint for the Circled Number: 4 or less just ignore. 5 or more, add 1 more.

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Practice # 6: STEPS: 1.Underline the place you are rounding to. 2.Write down the number(s) to the left of the underlined digit. 3.Circle the number to the right. 4.If the number to the right is 0, 1, 2, 3, or 4, then the underlined number stays the same. 5.If the number to the right is 5, 6, 7, 8, or 9, then the underlined number needs to go up 1 more number. 6.Every number to the right of the underlined number becomes a zero. Copyright © 2009 Kelly Mott Round to the nearest hundred: 3,659 Hint for the Circled Number: 4 or less just ignore. 5 or more, add 1 more.

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Practice # 7: STEPS: 1.Underline the place you are rounding to. 2.Write down the number(s) to the left of the underlined digit. 3.Circle the number to the right. 4.If the number to the right is 0, 1, 2, 3, or 4, then the underlined number stays the same. 5.If the number to the right is 5, 6, 7, 8, or 9, then the underlined number needs to go up 1 more number. 6.Every number to the right of the underlined number becomes a zero. Copyright © 2009 Kelly Mott Round to the nearest hundred: 8,249 Hint for the Circled Number: 4 or less just ignore. 5 or more, add 1 more.

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

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Practice # 9: STEPS: 1.Underline the place you are rounding to. 2.Write down the number(s) to the left of the underlined digit. 3.Circle the number to the right. 4.If the number to the right is 0, 1, 2, 3, or 4, then the underlined number stays the same. 5.If the number to the right is 5, 6, 7, 8, or 9, then the underlined number needs to go up 1 more number. 6.Every number to the right of the underlined number becomes a zero. Copyright © 2009 Kelly Mott Round to the nearest hundred: 6,832 Hint for the Circled Number: 4 or less just ignore. 5 or more, add 1 more.

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

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

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

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Practice # 13 : STEPS: 1.Underline the place you are rounding to. 2.Write down the number(s) to the left of the underlined digit. 3.Circle the number to the right. 4.If the number to the right is 0, 1, 2, 3, or 4, then the underlined number stays the same. 5.If the number to the right is 5, 6, 7, 8, or 9, then the underlined number needs to go up 1 more number. 6.Every number to the right of the underlined number becomes a zero. Copyright © 2009 Kelly Mott Round to the nearest hundred: 2,928 Hint for the Circled Number: 4 or less just ignore. 5 or more, add 1 more.

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Practice # 14: STEPS: 1.Underline the place you are rounding to. 2.Write down the number(s) to the left of the underlined digit. 3.Circle the number to the right. 4.If the number to the right is 0, 1, 2, 3, or 4, then the underlined number stays the same. 5.If the number to the right is 5, 6, 7, 8, or 9, then the underlined number needs to go up 1 more number. 6.Every number to the right of the underlined number becomes a zero. Copyright © 2009 Kelly Mott Round to the nearest hundred: 3,880 Hint for the Circled Number: 4 or less just ignore. 5 or more, add 1 more.

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

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Copyright © 2009 Kelly Mott

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Part 3: CHALLENGE Copyright © 2009 Kelly Mott

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Practice # 1: STEPS: 1.Underline the place you are rounding to. 2.Write down the number(s) to the left of the underlined digit. 3.Circle the number to the right. 4.If the number to the right is 0, 1, 2, 3, or 4, then the underlined number stays the same. 5.If the number to the right is 5, 6, 7, 8, or 9, then the underlined number needs to go up 1 more number. 6.Every number to the right of the underlined number becomes a zero. Copyright © 2009 Kelly Mott Round to the nearest hundred: 34,833 Hint for the Circled Number: 4 or less just ignore. 5 or more, add 1 more.

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Practice # 2: STEPS: 1.Underline the place you are rounding to. 2.Write down the number(s) to the left of the underlined digit. 3.Circle the number to the right. 4.If the number to the right is 0, 1, 2, 3, or 4, then the underlined number stays the same. 5.If the number to the right is 5, 6, 7, 8, or 9, then the underlined number needs to go up 1 more number. 6.Every number to the right of the underlined number becomes a zero. Copyright © 2009 Kelly Mott Round to the nearest hundred: 13,285 Hint for the Circled Number: 4 or less just ignore. 5 or more, add 1 more.

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Practice # 3: STEPS: 1.Underline the place you are rounding to. 2.Write down the number(s) to the left of the underlined digit. 3.Circle the number to the right. 4.If the number to the right is 0, 1, 2, 3, or 4, then the underlined number stays the same. 5.If the number to the right is 5, 6, 7, 8, or 9, then the underlined number needs to go up 1 more number. 6.Every number to the right of the underlined number becomes a zero. Copyright © 2009 Kelly Mott Round to the nearest hundred: 26,435 Hint for the Circled Number: 4 or less just ignore. 5 or more, add 1 more.

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Practice # 4: STEPS: 1.Underline the place you are rounding to. 2.Write down the number(s) to the left of the underlined digit. 3.Circle the number to the right. 4.If the number to the right is 0, 1, 2, 3, or 4, then the underlined number stays the same. 5.If the number to the right is 5, 6, 7, 8, or 9, then the underlined number needs to go up 1 more number. 6.Every number to the right of the underlined number becomes a zero. Copyright © 2009 Kelly Mott Round to the nearest hundred: 78,409 Hint for the Circled Number: 4 or less just ignore. 5 or more, add 1 more.

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Practice # 5: STEPS: 1.Underline the place you are rounding to. 2.Write down the number(s) to the left of the underlined digit. 3.Circle the number to the right. 4.If the number to the right is 0, 1, 2, 3, or 4, then the underlined number stays the same. 5.If the number to the right is 5, 6, 7, 8, or 9, then the underlined number needs to go up 1 more number. 6.Every number to the right of the underlined number becomes a zero. Copyright © 2009 Kelly Mott Round to the nearest hundred: 54,072 Hint for the Circled Number: 4 or less just ignore. 5 or more, add 1 more.

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Does this make sense? Copyright © 2009 Kelly Mott

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HOMEWORK Teacher Worksheet: Rounding to Nearest Hundred 4 Digits Worksheet Math Steps Pages: none Re-teach Page: none Copyright © 2009 Kelly Mott

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You can use the Rounding Pyramid: 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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