When estimating sums, it is best to round to the nearest round number. If the last place on the right is less than 5, then round down. If the last place on the right is 5 or more, then round up. For example, 43+88. You would round the 43 down to 40 and the 88 up to 90. The estimated sum would 130.
xxx=2x
It means to round a number to the nearest whole number, tens, hundreds, etc.
Find your number, look Right next door, five or more just add one more, four or less just ignore...
The answer will depend on what kind of sums.
Estimating one of them is equivalent to estimating the other.
No, it is not. Estimating may be rounding but need not be.
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The estimating term is "linear" feet and is a measurement in a line.
all the sums are 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,and 24
RS Means is a estimating guide book with generic prices. RS Means is a estimating guide book with generic prices.
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No. Measuring is getting an exact length. Estimating is guessing what the length is