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Estimating 25 78 as 25 75 is a common rounding technique used to simplify calculations while maintaining a reasonable level of accuracy. By rounding to the nearest multiple of 5 or 10, it makes mental math easier and quicker to perform. This approximation can be especially useful in situations where precise values are not necessary, such as in informal calculations or when making quick estimations.
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Why might you estimate 26 plus 78 as 25 plus 75?
Estimating 26 plus 78 as 25 plus 75 is a form of rounding that simplifies the calculation while maintaining the overall magnitude of the numbers involved. By rounding down to 25 and 75, you are working with numbers that are easier to mentally add together quickly. This estimation technique is particularly useful when you need a rough answer or when exact precision is not necessary.
What is 53 plus 25?
53 + 25 = 78
What is a reasonable estimate of the sum of 78 and 119?
A reasonable estimate of the sum of 78 and 119 is 197.
What mathematical fraction of the data is between 73 and 78?
The answer to this problem is 75.
If a student has test scores of 75 83 and 78 the final test counts half the total grade what must be the minimum integer score of the final test so that the average is 80?
(75+83+78+X)/4=80, solve for X X=4*80-75-83-78 So X=84
