515+777=
by adding or subtracting the values of the digits in the front place
14
8000 + 3000 = 11000
An initial estimate would be 468 .
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
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.
It means using only the first non-zero digit (rounded up if required), and replacing all other digits by zero.
What is a beer like beverage
Front end rounding is using the first or the first two digits to make an estimation. 37145 would be rounded to 40000.
28
Yuo can make only one combination of 30 digits using 30 digits.
by using decimals