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Q: Would you use rounding or compatible numbers to estimate the quotient of 46.8366.404?

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20.4211

rounding:9lb+63lb=about 72lb

Not in this case.

Use rounding and estimation to predict the approximate quotient of 285 ÷ 11.

Compatible numbers would be easier. Rounding gives you 14 x 47. Compatible numbers could be 13 x 50 which would be closer to the actual product.

You can calculate 3444 times 670 without rounding or you can estimate it WITH rounding. But you cannot estimate it without rounding.

9 + 63 = 72 lbs.

rounding numbers is to nearest ten or hundred and compatible numbers are when you can do nearest 5

25.9091

9+63+863+9

Rounding is going to the nearest tens, hundreds, thousands etc., depending on the problem. Compatible numbers are numbers the work well with each other. Both of these are estimating.

Not necessarily. Take this example: 89 ÷ 44 The rounding rules are clear. 89 goes to 90, 44 goes to 40, 90 ÷ 40 = 2.25 Compatible numbers can be altered by the relationships between them. 89 is close to 90, 44 is close to 45, 90 and 45 have a relationship that is easy to compute. 90 ÷ 45 = 2 In this case, the estimate provided by compatible numbers is closer to the real total than the one provided by rounding.

An estimate is an educated guess based on prior knowledge. Rounding off is knowing the exact value but rounding it to the nearest whole number.

Yes, rounding is one way to estimate.

Rounding to the nearest hundredth is more accurate.

For an "estimate", I would suggest rounding it to one or two significant digits.

An Estimate is basically a guess. Rounding is when you have an answer and you shorten the answer to a given number of digits. eg $27482 would round to $27500 to the nearest hundred dollars.

By Rounding It.

19

no actually

rounding

Students round down or round up and then adjust their estimate depending on how much rounding affected the original values.

65 - 9 = 56

The number of s.f or rounding off

54+86