Estimating a sum within .01 is important because it allows us to get a close approximation of the actual sum without having to calculate the exact value. This can save time and effort, especially when dealing with large data sets.
To estimate a sum within .01, you can use a technique called rounding. This involves rounding each number in the sum to the nearest hundredth and then adding them together. For example, if the numbers are 3.456 and 2.789, you would round them to 3.46 and 2.79 and then add them to get an estimated sum of 6.25.
No, estimation will not give you an accurate sum within .01. It is only an approximation and may not be exact. However, it can give you a close enough estimate for practical purposes.
Yes, there are other methods such as using averages or using a scientific calculator that allows you to specify the number of decimal places in your answer. However, rounding is the most commonly used method for estimating a sum within .01.
Specifying within .01 is important because it sets a limit on the level of accuracy needed for the estimated sum. It allows us to focus on the numbers that are most significant and disregard any minor discrepancies. It also helps us to avoid errors in our estimation process.