Ten times 10, times 10, times 10, times 10, times 10...

I could write this as 05, but that's just the same thing as 5.

I'm either 30, or I am 20 minus 10.

Well, we know from this rule up here that we can add these exponents because they're all the same base.

So this is the 3 that represents the 30, and then we're placing this 1 in the 100s place.

So, three times, in this product, so we're just multiplying everything.

And let me give that 100 to my tens place.

Bravo 10, Bravo 10, do you copy?

Bravo 10. Bravo 10., do you copy?

Then shall we go back?

Ten?

Forty.

And then we add the tens place.

So we get negative 12 plus 2 on the left hand side, negative 12 plus 2 is negative 10.

6, 7, 8, 9, 10. Ten little Indians!

Let's do another problem like that.

So how does this simplify?

So instead of a squared we should write seven squared plus ten times b. But instead of a b there we are now going to substitute it with b is equal to negative four.

100,000!

Less my 10 .

Minus 10 seconds.

Now, 15 is 1.5 times 10, and then we have to multiply that times, times 10 to the tenth, not X to the 10th, times 10 to the tenth power, this right over here.

Ten dimes are equal to one dollar.

So you have to multiply by 10 so it all equals out.

So if I want to write this value, this is just this 2.912 times ten.

We could say... well look, the 4 is in the ones place. So it's equal to 4, plus one 10.

I took away 100 from the 900 to get 800.

This gives us 3 times 5 is 15, 15 times 10 to the eighth, times 10 squared, we have the same base, we're taking the product so we can add the exponent.

There were ten accidents in as many days.

So he'll say, I'm either 40.

8 1 9.

( bell dings ) ( crowd cheering ) Eight, nine, ten!

Ten seconds.

Ten, nine, eight...

Ten, twenty, thirty... yeah.

Ten kilometers west.

Ten percent, huh?

Ten, 15 minutes.

Plus 1 ten. Plus 1 dime.

So this is 5 times 2 minus 3.

Right?

Test, October 11th, 10 41 p. m. Mark.

And now we focus on the tens place.

He made ten mistakes in as many lines.

He made ten mistakes in as many pages.