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When you use compatible numbers to estimate 9.4 plus 62.6 is it closer to the actual answer then using rounding?
Not in this case.
How does an underestimate relate to rounding factors before estimating?
Rounding factors can lead to underestimates or overestimates: the outcome depends on the rounding.
Why is rounding closer to the actual weight than compatible with these numbers 9.4 and 62.6?
Rounding is closer because the amount added to one number is the same as the amount subtracted from the other number which makes the answer match exactly.
How many lbs is equal to 100 kg?
220.46 lbs. The actual conversion of 1 kilogram is equal to 2.204622622 pounds. For everyday use, rounding to 2.2 should be enough. One pound is 0.45359237 kilogram, or 0.45 kg for everyday use.
What is a reasonable estimate for 776 divided by 38?
Well, darling, a reasonable estimate for 776 divided by 38 would be around 20.4. Just divide the nearest hundreds place numbers, and you'll get pretty close to the actual answer. But hey, who's counting anyway? Just remember, math is like a recipe - sometimes you can eyeball it and still come out with a decent result.
