Question

I have 18 ones, 15 hundreds, 15 tens, and 8 thousands. What number am I?

Answer 1

`9668`

Explanation:

You can use the following diagram to understand the concept regarding the names of place values (ones, tens, hundreds, thousands, etc.). However, in your case, we will only be working with the ones, tens, hundreds, and thousands.

`1`. Start by working with the ones. If "one" means "`1`," and you have `18` of them, then multiply `18` by `1`.

`18xx1`

`=18`

`2`. Move onto the tens. If "ten" means "`10`," and you have `15` of them, then multiply `15` by `10`.

`15xx10`

`=150`

`3`. Move onto the hundreds. If "hundred" means "`100`," and you have `15` of them, then multiply `15` by `100`.

`15xx100`

`=1500`

`4`. Move onto the thousands. If "thousand" means "`1000`," and you have `8` of them, then multiply `8` by `1000`.

`8xx1000`

`=8000`

`5`. Add the four products together to determine the number.

`8000+1500+150+18`

`=9500+150+18`

`=9650+18`

`=color(green)(|bar(ul(color(white)(a/a)9668color(white)(a/a)|)))`

Answer 2

`9668`

Explanation:

Treat each part as a multiplication and then add the answers together, being sure to align all the place holders correctly:

I have calculated them in increasing order of size.

`18 " ones " rarr 18xx 1 =18`

`15 " tens " rarr 15 xx 10 = 150`

`15 " hundreds " rarr15 xx100 = 1500`

`8 " thousands " rarr 8 xx1000 = 8000`

Add these together being sure to align them correctly

`color(white)(wwxww)18`
`color(white)(wxwx.)150`
`color(white)(ww.w)1500`
`color(white)(ww.w)ul8000`
`color(white)(ww.w)ul9668`