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Rounding to the nearest ten thousand & hundred thousand

Rounding to the nearest ten thousand & hundred thousand. A Teacher-Led Presentation California Math Standard: 4.NS.1.3 The student will identify (orally and in writing ) Round whole numbers through the millions to the nearest ten, hundred, thousand, ten thousand, or hundred thousand.

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Rounding to the nearest ten thousand & hundred thousand

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  1. Roundingto the nearestten thousand & hundred thousand • A Teacher-Led Presentation • California Math Standard: 4.NS.1.3 • The student will identify • (orally and in writing) • Round whole numbers through the millions to the nearest ten, hundred, thousand, ten thousand, or hundred thousand.

  2. Place Value Chart 2 9 3 5 1 8 4 7 6

  3. Rules to Rounding • First: Find the location of the number by looking at its place value. • Second: Look to the right of the number to be rounded. • Third: Is the number to the right 5 or above? Or is it 4 or lower? • Fourth: If it is 5 or above add 1 to the number to be rounded. • Fifth: If it is 4 or lower, keep the number to be rounded the same. • Sixth: After you round your number, finish the rest of the number off with zeroes.

  4. Round this number to the nearest ten thousand. 127,983 The 2 is in the ten thousands place. Look to the right . The 7 helps you decide. Will the 2stay the same or become a 3. 130,000 120,000 or

  5. Round this number to the nearest ten thousand. 683,157 The 8 is in the ten thousands place. Look to the right . The 3 helps you decide. Will the 8stay the same or become a 9? 690,000 680,000 or

  6. Round this number to the nearest hundred thousand. 205,983 The 2 is in the hundred thousands place. Look to the right . The 0 helps you decide. Will the 2 stay the same or become a 3? 200,000 300,000 or

  7. Round this number to the nearest hundred thousand. 631,248 The 6 is in the hundred thousands place. Look to the right . The 3 helps you decide. Will the 6stay the same or become a 7? 600,000 700,000 or

  8. Let’s Practice Together • Can you identify: • Which number is in the given place? • Which number will help you decide? • What is the correct answer?

  9. Round this number to the nearest hundred thousand. 631,248 Which number is in the hundred thousands place? Which number will help you decide how to round? Which is the correct answer? 600,000 700,000 or

  10. Round this number to the nearest hundred thousand. 562,098 Which number is in the hundred thousands place? Which number will help you decide how to round? Which is the correct answer? 500,000 600,000 or

  11. Round this number to the nearest hundred thousand. 695,271 Which number is in the hundred thousands place? Which number will help you decide how to round? Which is the correct answer? 600,000 700,000 or

  12. Try These On Your Own • Round to the nearest hundred thousand: • 349,128 • 254,498 • 561,490 • 789,120 • 451,308 • 300,000 • 300,000 • 600,000 • 800,000 • 500,000

  13. Try These On Your Own • Round to the nearest • hundred thousand: • 279,169 • 174,495 • 597,341 • 148,743 • 63,620 • 300,000 • 200,000 • 600,000 • 100,000 • 100,000

  14. Try These On Your Own • Round to the nearest ten thousand: • 349,128 • 254,498 • 561,490 • 789,120 • 451,308 • 350,000 • 250,000 • 560,000 • 790,000 • 450,000

  15. Try These On Your Own • Round to the nearest ten thousand: • 279,169 • 174,495 • 597,341 • 148,743 • 63,620 • 280,000 • 180,000 • 600,000 • 150,000 • 60,000

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