Blog

What’s the next letter in this sequence?
F, S, T, F, F, S, S, E …

Scroll down for the answer!

 

brain icon

 

Brainteaser answer

These are the first letters of the ordinal numbers: first, second, third, fourth, fifth, sixth, seventh, eighth, ninth … So the answer is N.

For more brainteasers and puzzles for kids, subscribe to Double Helix magazine!

Subscribe now! button

Leave a Reply

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.

By submitting this form, you give CSIRO permission to publish your comments on our websites. Please make sure the comments are your own. For more information please see our terms and conditions.

Why choose the Double Helix magazine for your students?

Perfect for ages 8 – 14

Developed by experienced editors

Engaging and motivating

*84% of readers are more interested in science

Engaging students voice