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Course: MAP Recommended Practice>Unit 34

Lesson 36: Estimate to divide decimals

Estimating decimal division

Estimating in decimal division involves rounding numbers to make calculations easier. Practice rounding decimals to the nearest whole number or a simple fraction, then perform the division. This won't yield an exact result, but a close approximation, which can be useful in many real-life situations.

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• What does "approximately" mean?
• ''approximately'' actually means "roughly" or "about" or in the ballpark of . For example 3.9 is ''approximately'' 4.
• How would I do two numbers behind the decimal? They don't go into that here :/
• Do you mean numbers such as 2.45 and 67.41?
• Can you help me with Estimating decimal division? :)
• sure! for example, if you were to get a quotient of 3.47 (random number) then you would round it to 3.5, because 7 is closer to the next tenth, so the 4 tenths would go up to 5. hope this helps!
• so if you are rounding a number when it is in the thousands place, are you supposed to round to the next hundreds place or to the closest thousands place?
• It’s the next hundreds place
• How do I use compatible numbers to estimate?
• What do you do to transform the decimals so you can make them into like 112 (that was random) or something like that?
• Why are the estimation questions so misleading?
• They aren't meant to be, the only confusing part is that the estimated number changes on where you round. (for example, 9.2 rounded to the nearest whole number would be 9, whereas rounded to the nearest tens place would be 10.)

Hope this helped!