Rounding Practice
Round to the nearest 10, 100 or 1,000, and then to the nearest whole number and tenth. Every question is drawn on a number line, so you can see which end the number is nearer to rather than just following a rule.
No account, and the maths stays in your browser — more— less
This activity is for learning and practice. Anything it suggests is indicative only — it is not a formal assessment and not a substitute for a teacher or tutor.
Nothing you answer is sent to Zerdly. Progress is saved on this device only if you switch saving on, and you can delete it at any time. How Kids Maths handles data.
Set your country and age — change
Setting an age keeps the questions at the right level for that age. It does not lock anything — you can still try any topic, at any age, in any order. Levels are a guide only, not a curriculum.
Your age is not saved anywhere. Your country is remembered only if you have switched saving on.
Saving your progress
Nothing is being saved. You can practise as much as you like — when you close the tab, the session is gone.
Rounding is a question about a number line
“Look at the next digit; 5 or more rounds up” works, and it explains nothing. A child taught only that cannot say why, and cannot tell when they have applied it to the wrong column. So start somewhere better: find the two numbers it could round to, and ask which one it is closer to. That is all rounding is.
- Which two 10s (or 100s, or tenths) does the number sit between?
- Is it before or past the halfway point between them?
- Take the one it is nearer to.
The awkward one: exactly halfway
45 is the same distance from 40 as it is from 50, so the picture cannot settle it. Everyone agrees to round up — not because up is more correct, but because two people rounding the same number should get the same answer. It is a convention, and it is worth knowing that it is one.
Watch the column, not the digits
The most common mistake in this tool is rounding to the wrong thing — giving 850 when the question asked for the nearest 100. Decide what you are rounding to before you look at any digits, and the rest follows.
School levels
School levels are a guide only. They show where a skill is usually taught in each country and are not taken from, aligned to, or endorsed by any curriculum authority. Your school may cover it earlier or later.