What is another name for 23 ten thousands?

For this case, the first thing we must do is to recognize the factor that is multiplying the number 23.

We have then:

ten thousands = 10,000

Therefore, by rewriting the given number we have:

23 ten thousands = 23 (10,000)

23 ten thousands = 230,000

Then, the name for the number obtained is:

two hundred thirty thousand

another name for 23 ten thousands is:

two hundred thirty thousand

the largest number of the four options is 1.8 x 10-2

you have it in scientific notation.

1.80 x 10-6   = 0.00000180

1.80 x 10-4   = 0.000180 (bigger, or "less small", than the former one)

so

1.8 x 10-2       = 0.0180. as you see. the "less small", or the biggest one of them all.

as you have negative exponent, it means you are dividing 1.8 by 100 (i.e. moving the dot towards left, two times).

if you had positive exponent for the scientific notation, power of tenths, you would be multiplying times 100 (moving the dot towards right) as below:

1.8 x (10)2 = 180

so. if you have negative exponent in scientific notation, move the dot toward left. if it is positive, toward right as many times the exponent tells you.