Round to the nearest ten, hundred or thousand, with the halfway cases included on purpose. Choose how long the numbers are and print with a matching answer key.
Grade 2–Grade 5 · every refresh draws a new set · answer key included
Rounding worksheets
Round each number to the nearest hundred.
Rounding worksheets — answer key
Round each number to the nearest hundred.
20 problems · US Letter · answer key — 2 sheets, page breaks marked in the preview
Rounding is the first piece of arithmetic where the rule matters more than the calculation, and where the interesting cases are deliberately rare in the wild: a page of random numbers hardly ever lands on a halfway value, so pupils finish it without ever meeting the part of the rule they will get wrong. About one question in five here is a halfway case on purpose — a number ending in 5 when rounding to tens, 50 to hundreds, 500 to thousands — so the convention gets practised rather than avoided.
Grade 2 to Grade 5, ages seven to eleven. Rounding two and three digit numbers to the nearest ten is Grade 2 and 3 work; the nearest hundred and thousand with four to six digit numbers belongs in Grade 4 and 5, usually just before estimation is taught.
Match the place to the length of the number: rounding a three-digit number to the nearest thousand is a legitimate question but a strange one to drill, so the generator leaves out places larger than the numbers on the page. Mixed puts the target place inside each question, which forces pupils to read rather than fall into a rhythm — a good end-of-unit sheet and a poor first lesson.
The most common error is rounding the wrong digit: to round to the nearest hundred a pupil looks at the hundreds digit instead of the tens digit next to it. The second is rounding twice, so 3,462 becomes 3,470 and then 3,500. Halfway cases produce the third: some pupils round 3,450 down because 5 feels like the middle rather than the trigger to round up.