Practise rounding to the nearest 10 worksheets on a number line — kids see the two round numbers, find the midpoint, and write what the number rounds to. Every sheet prints with a matching answer key. Two-digit numbers on a number line between two tens — read which ten the number is closer to and round it. Free, no signup.
Opens the builder set to to the nearest 10 · 8 number lines per sheet · free, no signup.
Rounding to the nearest 10 means picking the multiple of ten a number sits closest to. On a number line the two neighbouring tens sit at each end and the halfway mark is in the middle — if the number lands on or past that midpoint it rounds up, otherwise it rounds down. 47 is past 45, so it rounds up to 50.
Quick way to teach it: Look only at the ones digit: 0–4 rounds down (keep the ten), 5–9 rounds up (next ten). The number line makes the rule visible — the midpoint is the 5, and anything to its right is closer to the bigger ten.
Look only at the ones digit: 0–4 rounds down (keep the ten), 5–9 rounds up (next ten). The number line makes the rule visible — the midpoint is the 5, and anything to its right is closer to the bigger ten. Print a fresh sheet, work a few number lines together each day, and check with the answer key — short, regular practice beats one long session.
This is usually taught in Grade 2 & Grade 3. Rounding to the nearest 10 means picking the multiple of ten a number sits closest to. On a number line the two neighbouring tens sit at each end and the halfway mark is in the middle — if the number lands on or past that midpoint it rounds up, otherwise it rounds down. 47 is past 45, so it rounds up to 50.
Look at the digit one place to the right of where you're rounding. If it's 5, 6, 7, 8 or 9 you round up to the next multiple; if it's 0, 1, 2, 3 or 4 you round down and keep the multiple you have. The number line shows why: the midpoint is exactly halfway, so anything on or past it is closer to the larger number.
A number line turns rounding from a digit trick into something you can see. The two round numbers sit at the ends, the halfway mark sits in the middle, and the number you're rounding is plotted between them — so a child can literally see which end it's nearer to before learning the shortcut. It's the bridge from understanding to fluency.