Space to play or pause, M to mute, left and right arrows to seek, up and down arrows for volume. Hello! Today we're learning how to name ordinal numbers up to five. Let's start with first. Imagine you ...

There are two kinds of numbers; ordinal and cardinal. Ordinal numbers denote rank or position in a system, while cardinal numbers tally how many units of something there are. You can think of ordinals ...

(1) For the protocol that adds NFTs to Bitcoin, see Bitcoin Ordinals. (2) A number that identifies the sequence of an item; for example, "record #34 is invalid." Contrast with "cardinal number," which ...