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Welcome to Halloween Estimations

Welcome to Halloween Estimations

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Welcome to Halloween Estimations

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  1. Welcome to Halloween Estimations

  2. What place value should I round to for each? How did you know? • 389+625 • 1,111+234 • 89+23 • 112+87 • 1,567+4,222 • 79+456

  3. Estimate 21+67 20+70=140 Now you try one!

  4. Estimate 339+578 Hint: Round to the nearest hundred because that’s the highest place value they both have.

  5. Estimate 339+578 300+600=900

  6. Estimate 678+72 Hint: Round to the nearest ten because that’s the highest place value they both have.

  7. Estimate 678+72 680+70=750

  8. Estimate 1,567+4,356 Hint: Round to the nearest thousand because that’s the highest value they both have.

  9. Estimate 1,567+4,356 2,000+4,000=6,000

  10. Now for the last one!

  11. Estimate 8,425+378 Hint: How did I know to round to the nearest hundred?

  12. Round to the nearest hundred 8,425+378 8,400+400=8,800

  13. HAPPY HALLOWEEN!