This is interesting to look at. Could be a great overhead, or document camera projection while entering the class.

1 = One

10 = Ten

100 = One hundred

1000 = One thousand

86400 = The number of
seconds in a day

1000000 = One million

31556926 = The number of
seconds in a year

1000000000 = One billion

7000000000 = The estimated
human population on Earth (2011)

1000000000000 = One
trillion

1000000000000000 = One
quadrillion

1000000000000000000 = One
quintillion

1000000000000000000000 =
One sextillion

1000000000000000000000000
= One septillion

1000000000000000000000000000
= One octillion

1000000000000000000000000000000
= One nonillion

1000000000000000000000000000000000
= One decillion

1000000000000000000000000000000000000
= One undecillion

1000000000000000000000000000000000000000
= One duodecillion

1000000000000000000000000000000000000000000
= One tredecillion

1000000000000000000000000000000000000000000000
= One quattuordecillion

1000000000000000000000000000000000000000000000000
= One quindecillion

1000000000000000000000000000000000000000000000000000
= One sexdecillion

1000000000000000000000000000000000000000000000000000000
= One septendecillion

1000000000000000000000000000000000000000000000000000000000
= One octodecillion

1000000000000000000000000000000000000000000000000000000000000
= One novemdecillion

1000000000000000000000000000000000000000000000000000000000000000
= One vigintillion

10000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
= One googol (the number 1 followed by 100 zeros)

1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
= One centillion (the number 1 followed by 303 zeros)

One googolplex = The number 1 followed by a googol
zeros (there literally isn't enough room in the universe to write this number).

While not really a number, ‘infinity’ refers to a limitless quantity and
is represented by a symbol that looks like the number 8 placed on its side.