'Rounded numbers' diaporamas de présentation

WALT

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Rounding

Rounding. Which number is closer?. Rounding. A dress costs $73. Is 73 closer to $70 or closer to $80? Of course it is closer to $70. This is an example of rounding. Which is closer?. What about $97? Is 97 closer to $90 or $100? $97 is closer to $100.

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Rounding

Rounding. Which number is closer?. Rounding. A dress costs $73. Is 73 closer to $70 or closer to $80? Of course it is closer to $70. This is an example of rounding. Which is closer?. What about $97? Is 97 closer to $90 or $100? $97 is closer to $100.

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Module 2 Lesson 8

Objective: Fluently multiply multi-digit whole numbers using the standard algorithm and using estimation to check for reasonableness of the product. Module 2 Lesson 8. What is 10 2 and what is the answer? 10 squared or 10 to the 2 nd power. The answer is 100.

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Estimating Sums and Differences with Whole Numbers

Estimating Sums and Differences with Whole Numbers. Why do we estimate?. When do we estimate?. There are several ways to estimate. 1. Rounding. Rounding makes numbers that are easier to work with in your head. Rounded numbers are only approximate.

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Rounding Numbers

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Estimation and Rounding

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Rounding Calculations Tolerance

Estimation and Rounding. Rounding Calculations Tolerance. Return to Main Menu. Estimation : Rounding. Numbers can be rounded to give an approximation. The result is less accurate but easier to use. 26 5 2 rounded to the nearest 10 is 2650. 2 6 52 rounded to the nearest 100 is 2700.

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Altering numbers to make life easier.

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Estimation

Estimation. Do it in your head. Estimation. Estimation is doing math in your head. You get an answer that is not exact. Round the numbers in the question. Work the problem with the rounded numbers. Example: . Estimate 3.14 x 4.871 Round. 3.14 is close to 3 4.871 is close to 5

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