We can round off all the numbers in a maths problem to \(1\) significant ... So this was a good estimate. Now try this one. Remember, the working you do is just as important as the answer.
The number line to 10,000 Learn how to estimate and label numbers up to 10,000 on a number line. Number line to 100 and 1000 Learn how to write and work out numbers on a number line to 1000.