Front end estimation is simpler but usually more crude.
Rounding factors can lead to underestimates or overestimates: the outcome depends on the rounding.
10 - 4 = 6
The answer depends on the degree to which the number is rounded. To the nearest whole number, it is 0.
Multiplication estimating is making the terms a simpler but more inaccurate number to multiply. Round 9 to 10 and 54 to 50. 9*54=486 10*50=500
It is 11199.99... to the nearest 4000, or 8004.99... to the nearest 10. It all depends on the degree of rounding - which is not specified in the question.
No, it is not. Estimating may be rounding but need not be.
They are not.
Estimating is neither better nor worse than rounding. The two are used for different purposes.
Rounding, you see the number and just make it look neater or easier to use. Estimating, you guess a number.
Rounding?
Rounding is going to the nearest tens, hundreds, thousands etc., depending on the problem. Compatible numbers are numbers the work well with each other. Both of these are estimating.
Estimating is a guess that should be close to the answer. Round is rounding a number up to the nearest ten, hundred. Example $345.89 round to the nearest dollar is $345.
It is - if you use appropriate rounding. Rounding does not have to be to whole numbers.
By rounding the factors, then quickly multiplying them in your head.
if you had an adding sum we would use it and if you were estimating
Rounding factors can lead to underestimates or overestimates: the outcome depends on the rounding.
The answer depends on the extent of rounding which, unfortunately, has not been specified.