Front end estimation- An estimation method in which the front digits are added or subtracted
it means the front of somthing
3000
It means using only the first non-zero digit (rounded up if required), and replacing all other digits by zero.
Front end estimation is a quick method to find an estimate of sums and differences, however it is generally not more accurate than the answer produced by adding or subtracting rounded numbers. Take for example a pair of pants and a shirt that are $24.99 and $16.99, respectively. The correct total of these items would be $41.98. Using the method of adding rounded numbers would yield $42 - which is only two cents from the correct total. Front end estimation would yield $40 - which is $1.98 short of the correct total. The use of front end estimation is why stores sell things for $24.99 and $16.99, rather than $25 and $17. It is an open attempt to make the consumer think that they are paying for something at a lower price than they actually are.
Front end estimation- An estimation method in which the front digits are added or subtracted
500
By using front end estimation, the numbers that you start of with have only one significant digit. It is, therefore, nonsense to have an answer with loads of significant digits.
When using front-end estimation, we add or subtract the front digits, and then adjust for a more accurate estimation by estimating the sum of the digits to the right of the decimal point.
Front end : use ONLY the first few # Relative size : use the FULL # and round it
10.91
400
23
400
2,000. A front-end estimation just means to round it by the greatest value, in this case the thousands.
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
it means the front of somthing