Monday, May 27, 2013

Reading and Decimal Writing


The numbers left to the decimal point is known as whole number and right to the decimal point is called decimal number. The number in the digit has place value. Depending upon the place value we can read and write the decimals.

For example: 3456.89 Here 3456 is the whole numbers and .89 is the decimal numbers. Let us see about place value of the decimal used for read and write the decimal.

Understanding Decimal Symbol is always challenging for me but thanks to all math help websites to help me out. 

Place Value – Reading and Decimal Writing:


Let take the example decimals 35926.94843 denotes the place value of the following table.
Place value Decimals Number
Ten thousands 3
Thousands 5
Hundreds 9
Tens 2
ones 6
Decimal point .
Tenths 9
Hundredths 4
Thousandths 8
Ten thousandths 4
Hundred thousandths 3


Example Problems – Reading and Decimal Writing:

Example 1:
Write the place value of the simple decimals of this 6978.4254
Solution:
6 x 1000 thousands
9 x 100 hundreds
7 x 10 tens
8 x 1 ones
4 x 0.1 tenths
2 x 0.01 hundredths
5 x 0.001 thousandths
4 x 0.0001 ten-thousandths

Example 2:
Convert this mixed fraction of 39 49/100 to decimals and how to read and the decimal form.

Solution:


Mixed Number Expanded Form Writing Decimal form Reading  the decimal (phrase form)
89 `(43)/(100)` (8 * 10) + 9 * 1 4* (`(1)/(10)` )+  3 * (`(1)/(100)`) 89.43 Thirty nine and four tenths nine hundredths
Whole number part Fractional part

Example 3:
How to read and write the following fraction to decimal form?
  `(74)/(100)`, `(87)/(1000)` and `(65)/(10)`

Solution:
Fraction  Number Reading decimal Writing Decimal form
  `(74)/(100)` Seven tenths Four hundredth 0.74
`(87)/(1000)` Eight hundredth Seven thousandth 0.087
`(65)/(10)` Six ones Five tenth 6.5


Practice Problem – Reading and Decimal Writing:


1.  How to read the decimal form 33. 67?
Answer: Thirty three and sixty seven hundredth
2. Write in decimal form of the phrase seven hundred fifty three and four hundred and forty three thousandths.
Answer: 753.443

No comments:

Post a Comment