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Yes but, if you can, you should try to round one up and the other down. Unless that results in rounding well away from the number.
For example, 48*62
Exact answer = 2976
If you round 48 up to 50, 62 down to 60
Estimate = 50*60 = 3000 (estimation error = +0.8%)
But if you had 48*68
Exact answer = 3264
Round up and down: 50*60 = 3000 (estimation error = -8.1% )
Round down and up: 40*70 = 2800 (estimation error= -14.2%)
Round up and up: 50*70 = 3500 (estimation error = +7.2%)
The last still has a large error but it is the smallest of the these.
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How can estimating with compatible numbers help you find the quotient?
it makes it easier when u round
What both numbers would round to 8.22?
8.216 or 8.2237 are two possible numbers.
When estimating what number can you round pi to and multiplying easier?
radius
Why does it make sense to round a mixed number to the nearest whole number when estimating a sum or difference Could you round to the nearest one half instead?
Some people find it easier to add or subtract whole numbers but yes, you could round to the nearest half.
What is 48765 plus 9221 in estimating the sum and difference?
When estimating the sum of 48765 and 9221, you can round each number to the nearest thousand. 48765 rounds to 49000, and 9221 rounds to 9000. Adding these rounded numbers gives you an estimated sum of 58000. To estimate the difference, you can round 48765 to 49000 and 9221 to 9000. Subtracting these rounded numbers gives you an estimated difference of 4000.
