Number lines kids read to round — to the nearest 10, the nearest 100, or a mix of both. Each set prints with a matching answer key. Always free, no signup.
Open the rounding builder →Start with rounding to the nearest 10 using two-digit numbers, so the only decision is the ones digit. Once that's automatic, move to rounding three-digit numbers to the nearest 100, looking at the tens digit. Then mix the two — some lines rounding to tens, some to hundreds — so kids read each number line instead of running one rule on autopilot. Each worksheet above sets exactly one of those stages.
Find the place you're rounding to, then look at the digit just to its right. 5 or more rounds up to the next multiple; 4 or less rounds down and keeps the multiple you have. On a number line the midpoint is that exact halfway point — numbers on or past it are nearer the larger round number.
Rounding to the nearest 10 starts in Grade 2 and 3; rounding to the nearest 100 and mixed rounding come in Grade 3 and 4. Pick the page that matches where your child is.
Yes — every set is free to generate and print, with answer keys, no account and no watermark. Each click makes a fresh set of number lines.