The video also discusses zero as a placeholder in larger numbers and its importance in rounding off figures. Overall, it clarifies that zero is an essential number, not a troublemaker in arithmetic.

Save guides, add subjects and pick up where you left off with your BBC account. A number line is a straight line with numbers written in order from lowest to highest. Number lines can go up to any ...

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.

One identifying characteristic of real numbers is that they can be represented over a number line. Think of a horizontal line. The center point, or the origin, is zero .

The number was used in The Suite Life Of Zack & Cody (Picture: Craig Sjodin/Disney Channel via Getty Images) Some Marvel fans gave the Captain Marvel number a ring – and it’s now a sex line.