I have 13 hundredths,18 thousands,2 hundreds and 17 ones.What is her mystery number written in standard,expanded and word forms?

show that 0.27 (both recurring) can be written as 3/11?

18,217.13

To find the mystery number written in standard, expanded, and word forms, you need to understand the place value system. Let's break down the given information:

13 hundredths = 0.13 (in decimal form)
18 thousands = 18,000
2 hundreds = 200
17 ones = 17

Now, let's add up all these values to find the mystery number:

0.13 + 18,000 + 200 + 17 = 18,217.13

So, the mystery number in standard form is 18,217.13.

In expanded form, we write each digit with its corresponding place value:

18,217.13 = 10,000 + 8,000 + 200 + 10 + 7 + 0.1 + 0.03

Therefore, the mystery number in expanded form is 10,000 + 8,000 + 200 + 10 + 7 + 0.1 + 0.03.

In word form, we can write the mystery number as follows:

18,217.13 = eighteen thousand, two hundred seventeen and thirteen hundredths

Thus, the mystery number in word form is "eighteen thousand, two hundred seventeen and thirteen hundredths".