Estimate a collection to 200
Estimate the number of objects in a collection of up to 200 by rounding to a nearby benchmark, then verify with the exact count. Unlimited questions, five difficulty levels, and a full worked solution every time — free.
Try one
A jar has 19 paper clips in it. Rounded to the nearest 10, about how many paper clips are in the jar?
Answer: 20
See one solved, step by step
A jar has 52 paper clips in it. Rounded to the nearest 10, about how many paper clips are in the jar?
📘 Worked solution
152 is between 50 and 60.Those are the two nearest multiples of 10.
252 is closer to 50.Compare how far 52 is from each of the two multiples of 10.
3So the estimate is about 50.Round to the closer benchmark to get a quick, useful estimate.
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