Writing a Decimal Number Given its Name: Advanced

A decimal number has a whole number part and a decimal part separated by decimal point. For example: 56.09821

It can also be a number having only decimal part. For example: 0.00345

Rules for writing a decimal number given its name

We write a decimal point for the word and in the number name.

We write a whole number for the number name before the word and . This is the whole number part of the decimal number.

We write a whole number for the number name after the word and . This is the decimal part of the decimal number.

We see to it that the last digit has the place value given by the decimal unit pke tenths , hundredths and so on.

Example:

Write the decimal seventy-three and twenty six thousandths.

Solution

We write a decimal point for and as "."

We write for seventy-three before and as "73."

We write for twenty-six after and as "0._26"

We see to it that the last digit 6 falls in the thousandths place and write twenty six thousandths as "0.026".

Therefore we write seventy-three and twenty six thousandths as "73.026"

Write the decimal six hundred forty-two and thirteen hundredths.

Solution

Step 1:

We write and as a decimal point "."

Step 2:

We write six hundred forty-two before and as "642."

Step 3:

We write thirteen after and as "0.13"

Step 4:

We see that the last digit 3 is in hundredths place. So thirteen hundredths is "0.13"

Step 5:

Therefore six hundred forty-two and thirteen hundredths is "642.13"

Write the decimal number one hundred twenty-six and nineteen thousandths.

Solution

Step 1:

We write and as a decimal point "."

Step 2:

We write one hundred twenty-six before and as "126."

Step 3:

We write nineteen after and as "0._19"

Step 4:

We see to it that the last digit 9 is in thousandths place. So nineteen thousandths is 0.019.

Step 5:

Therefore one hundred twenty-six and nineteen thousandths is "126.019"

Write the decimal number one thousand one and one hundred four thousandths.

Solution

Step 1:

We write and as a decimal point "."

Step 2:

We write one thousand one before and as "1001."

Step 3:

We write four after and as "0._ _ 4"

Step 4:

We see to it that the last digit 4 is in thousandths place. So four thousandths is 0.004.

Step 5:

Therefore one thousand one and one hundred four thousandths is "1001.004".