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Rounding involves adjusting a number to a nearby value that is easier to work with, typically to a specific place value, such as rounding 47 to 50. Compatible numbers, on the other hand, are numbers that are chosen to make mental calculations easier and are often used in estimation; for example, using 50 and 20 instead of 47 and 19. While rounding aims for simplicity by reducing specificity, compatible numbers focus on creating numbers that are easy to manipulate in calculations. Both techniques are useful for estimation but serve different purposes in simplifying numbers.
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Are the estimates always the same when you use rounding to the nearest whole number and compatible numbers?
no actually
What are compatible numbers for 504 divided by 32?
15.75
What is the estimate of 2 boxes that weigh 9.4 lb and 62.6 lb using rounding and compatible numbers?
9 + 63 = 72 lbs.
What is the purpose of rounding numbers?
the purpose of rounding numbers is that you can get closer to the actual answer
How are you rounding whole numbers and decimals?
rounding whole numbers and decimals
What is the difference between a compatible number and rounding numbers?
rounding numbers is to nearest ten or hundred and compatible numbers are when you can do nearest 5
What is the difference between compatible numbers and rounding?
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.
Would you use rounding or compatible numbers to estimate the quotient of 46.8366.404?
50.0000.000
Are rounding and compatible numbers the same thing?
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.
What is the difference between rounding front end numbers and compatible numbers?
If I were multiplying I would like to round to tens so I can "annex" the zeroes. If I were adding I would like numbers that would equal 0 like 3+7 or 5+5 or 2+8. They are compatible numbers.
Explain whether it is easier to estimate the product 13.72 x 47.28 by using compatible numbers or by rounding each factor to the nearest whole number?
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.
Are the estimates always the same when you use rounding to the nearest whole number and compatible numbers?
no actually
When you use compatible numbers to estimate 9.4 plus 62.6 is it closer to the actual answer then using rounding?
Not in this case.
Estimate the total weight of two boxes that weight 9.4 lb and 62.6 lb using rounding and compatible numbers which estimate is closer to the actual total weight why?
Rounding the weights to 10 lb and 60 lb gives an estimated total weight of 70 lb. Using compatible numbers by rounding to 9 lb and 60 lb, the estimated total weight is 69 lb. The estimate using compatible numbers (69 lb) is closer to the actual total weight of 71.6 lb.
What are compatible numbers for 504 divided by 32?
15.75
What is the estimate of 2 boxes that weigh 9.4 lb and 62.6 lb using rounding and compatible numbers?
9 + 63 = 72 lbs.
Why is rounding closer to the actual weight than compatible with these numbers 9.4 and 62.6?
Rounding is closer because the amount added to one number is the same as the amount subtracted from the other number which makes the answer match exactly.
