front end estimation for 25.9 + 3.6
Would the answer be 30 + 7 = 37?
5
1
The front-end digit of 5.28 is 5.
It is front-end estimation.
9
8
It is 9.
It is the 9.
2
3 is your front end digit nothing in the numbers can round up so it would seem that 300 would be it
a single end digit is a digit at the end of a number. e.g. 4735 the SED is 5
9