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## Name Underlined Place

#### Introduction

When you are dealing with large numbers, it can be difficult to work out which digit corresponds to which value. For example, in the number 491,289,729, which place is the 8 in?

If one of the numbers is underlined, and you need to work out its value, you can use a number table to help you quickly find out.

## Lesson

Let's take the example listed in the introduction above:

491,289,729

If we underline one of the digits in the number, we can work out the value of that place:

49++1++,289,729

Now, we can use a number table to help us order all of the digits. A number table is a useful tool for helping us work out the value of each column. We can use the number table below:

Hundred MillionsTen MillionsMilionsHundred ThousandsTen ThousandsThousandsHundredsTensOnes

We can plug the numbers into our number table. When you fill in a table, start on the furthest right in the ones column, then the tens, then the hundreds and so on. This will prevent you from having an empty space on the right.

Hundred MillionsTen MillionsMilionsHundred ThousandsTen ThousandsThousandsHundredsTensOnes
49++1++289729

Because our underlined number is in the millions column, we know straight away that it is one million (or 1,000,000).

If we need to create a number table for a number with decimals, we can add extra columns to the right (just remember to put the decimal point in) and then follow exactly the same process.

## Examples

51423
From right to left, the names of the places are:
$51,42\underline{3} \rightarrow Ones = 3$
$51,4\underline{2}3 \rightarrow Tens = 2$
$51,\underline{4}23 \rightarrow Hundreds = 4$
$5\underline{1},423 \rightarrow Thousands = 1$
$\underline{5}1,423 \rightarrow Ten Thousands = 5$
The underlined place is the Tens column