What is front end estimation with adjustment?


Front end estimation is a system in mathematics whereby one only rounds off and add the numbers in the leftmost place or the very last number on the left. When this is done, all numbers in other places will be zeros except the number in the leftmost place after the numbers are rounded. If the numbers have two digits, one should round to the tens place before adding the leftmost digits or numbers.
Q&A Related to "What is front end estimation with adjustment?"
When using front-end estimation, first you add the front-end digits. Then adjust by estimating the sum of the remaining digits. Then add the two values.
With front end estimation, we only round and add the numbers in the leftmost place or
Front end estimation mostly produces a closer estimate of sums or differences than the answer produced by adding or subtracting rounded numbers. How to estimate a sum by front end
Before GUIs were developed, front-end users had to type command strings on a blank screen using Command Line Interface. The Apple Macintosh in 1984 was the first computer to use GUI
1 Additional Answer
Front end estimation is a way of rounding mathematical numbers. The digit farthest to the left are rounded and all other numbers become zeros.
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