By looking at the number line, you can see how far 100 and 1000 are away from each other. Take a look at the examples below to see how you can use number lines to estimate, work out and write numbers.

In this Maths article, learn how to read and write numbers to 100. In this Maths article, ... It also gives the value of each digit in a number. Hundred squares, number lines, ...

That number lines can't start at, don't always have to start at zero. So they decided, you know what, if this is 50 and this is 65 there's no way that this is zero.

Teaching in Room 9. Open Number Lines 2 | 2nd Grade Math. Special | 28m 38s Video has Closed Captions | CC. Addition & subtraction strategies to solve two-digit equations using an open number line.