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Q: Using front end rounding, the best estimate of the product of 7.3 × 4 is?

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because you get a whole number

Front end rounding is using the first or the first two digits to make an estimation. 37145 would be rounded to 40000.

Front end estimation is simpler but usually more crude.

Front end rounding is taking the first digit and making the rest 0. 75 would be 70 in front end rounding.

The name comes from the way you round. Front end rounding is keeping the first number and rounding all the numbers after that.

Instead of rounding each number to a given place value, we round whatever number is in the front.

In front end estimate, one takes the two hightest digits of a number, and then puts zeros on the other place values. This is supposed to product a closer estimate than rounding and then adding numbers. For example... 4496 plus 3745... front end 4400 and 3700 and then add... to 8100 For 4496 and 745... fond end 4400 and 0700, and then add to 5100

400

It is 5000.

60

by adding or subtracting the values of the digits in the front place

7.85

515+777=

The name comes from the way you round. Front end rounding is keeping the first number and rounding all the numbers after that. To make the last four digits in 10124 a 0, round to the nearest ten thousand. That would be 10000. 10000 is the front end rounding 10124.

It is 10000.

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.

14

3000 + 6000 = 9000

It is front-end estimation.

An initial estimate would be 468 .

It is 20.It is 20.It is 20.It is 20.

8000 + 3000 = 11000

8 + 11 = 19

Front end estimation generally produces a better estimate of sums or differences than rounding before adding or subtracting. How to Estimate a sum by front end estimation * Add the digits of the two highest place values * Insert zeros for the other place values * Example 1: 4496 + 3745 is estimated to be 8100 by front end estimation (i.e. 4400 + 3700). * Example 2: 4496 + 745 is estimated to be 5100 by front end estimation (i.e. 4400 + 700).

The front end rounding gives 900. But rounding a single number, in isolation and without context, is a complete waste of time. It all comes down to the context of what needs to be done with the number.If I had to add 895 to 1 trillion, I would estimate it as 0.If I had to add 895 to 0.0000000001, I would use the number as given, or possibly the front end estimate. If I had to divide it by 8, I would estimate it as 896, because 896/8 = 112. If I had to divide it by 89, I would estimate it as 890, because 890/10 = 10.