Representing Decimals

Decimals are part of a whole.  For example 0.40 cents is part of $1.00, 10 cm is part of 1 metre and 30 seconds is part of 1 minute. 


We can represent decimals in several different ways:


Base 10 Blocks: Show .231


 


Place Value Chart:

Tens	Ones	.	Tenths	Hundredths	Thousandths
		.	2	3	1

Expanded form:


.231= 0.2 + 0.03 + 0.001
.231= 2 tenths + 3 hundredths + 1 thousandths


Fractions: 231  
                 1,000


Words: two hundred and thirty-one thousandths




Now try This: For the following decimals:


1. Represent using base ten blocks
2. Represent using expanded form (numbers and words)
3. Represent the fraction
4. Represent using words


a) 0.234
b) 0.637
c) 0.405
d) 0.007
e) 0.3
f) 0.19