How to Count in Binary

Learn how base-2 arithmetic works with Math Dad.

[Archaeopteryx]

Many years ago I made up a custom card for a girl I was courting.
The occasion was her turning one gigasecond old.
A gigasecond, one billion seconds, is about 31 years and seven months.
I converted to binary and wrote the number out longhand on the card.
She liked it.

[rightmike]

What a great way to explain this. Thank you so much.

[douggibson]

I cant make out what the hands represent, I thought looking at it from right to left
[ 1*2 + 1*4 + 0*8 + 0*16 + 0*32 + 0*64 + 1*128 + 1*256 ] = 390 so that's my guess, thanks for the tutorial!

[JONATHANPish]

Great video! Thank you!
was the number displayed at the end 195?

[superstar]

👍👌👍💯 Thank you for HELPING ME. Now I do not feel like a dumbass. This did help me. I can raise my head up. Very Great full & you made a difference‼️🤩

[ethanrhyne]

i cant do 8 or 9 on my hands because my finger wont stay out

[rianthreeden]

Watching this in class right now
It's 195!

[Archaeopteryx]

"Base eight is just like base ten, if you're missing two fingers." - Tom Lehrer

[Yokut]

1:17 this moment is for anime enthusiasts

[abrahamholcombe]

195 is the answer to the final challenge.

[ihorperedystyi]

Actually, if we use number system with base 2, for instance, than the answer gonna be 2+2 = 20 🤷🏻‍♂️
But that’s a different story

[gabilauria]

such a funy joke il give it a 1010 out of 1010 (ten out of ten )