What is the 14th term in the sequence? #mathwithtiffany #supereasymath #einsteinactivity #sequence

Hinzugefügt: 2026-05-22

[00:00:00]Hey guys, it's Tiffany. Today's Einstein activity says, "What is the 14th number in this sequence?" We have -2, 3, 8, and 13. [music] Well, when you play around with the numbers, you can see that they have a difference of five starting at [music] -2. So, if you play around with the rule, you can see that 5x - 7 will always give us the correct answer in the sequence, and the X represents the number in the term. For example, the number three is the second term [music] in the sequence, and when we plug in two for the X value, we get an answer of three. We can follow this pattern for [music] every number in this sequence.

[00:00:40]So, when we get to 14, instead of skip counting by five all along, we can plug in 14 [music] for that X value and get an answer of 63.

[00:00:50]Don't forget [music] to like this video and subscribe, and as always, here's tomorrow's Einstein activity.

[00:00:57]See if you can solve it before I do, then comment with your answer. And [music] if you found yourself struggling with this problem, head over to my website where you can get a live math tutor who can help [music] you with all of your math needs.