decimals & decimal place value. math vocabulary decimal: a number that names part of a whole...
TRANSCRIPT
Decimals & Decimal
Place Value
Math VocabularyDecimal:
A number that names part of a whole
Decimal Point:
The dot in a decimal
Decimal Place:
ALL #s to the right of a decimal point are called
decimal places.
Mixed Decimal:
A number with a whole number, decimal point, and decimal numbers (to the
right of the decimal
Decimal places…
How many decimal places?
0.234 three
1.0008 four
212.2 one
Decimal Place Value
___ . ___ ___ ___ ___ ___ ones tenths hundredths thousandths 10 thousandths 100 thousandths
* When reading/writing decimals we use the letters
“ths” at the end of the place value word to
determine that they are decimal values.
Decimal Place Valuea) Which digit is in the
thousandths’ place … 16.57349
b) Which digit is in the tenths’
place … 0.0123
c) What is the place value of the 9
in 67.89?
d) What is the value of the 5 in
12.3435?
3 thousandths
0 tenths
9 hundredths
5 ten thousandths
Practice…a) How many decimals places in … 16.57349
b) Which digit is in the tenths’ place … 42.526
c) What is the place value of the 4 in 0.000426?
d) How many decimal places in … 4.98?
e) What digit is in the thousandths place … 0.3052