Decimals Flashcards
What is a decimal?
A way of representing numbers using powers of 10.
What place value is 1 in the number 1000?
The thousands place.
What place value is 1 in the number 100?
The hundreds place.
What is the place value of 1 in the number 10?
The tens place
What is the place value of the number 1 in the the number 1?
The ones or units place.
What is the place value of the number one in the number 0.1?
The tenths place.
What is the place value of the number 1 in the number 0.01?
The hundredths place.
What is the place value of the number 1 in the number 0.001?
The thousandths place.
How can a decimal be converted to a fraction?
By dividing it by 10 to the appropriate power.
Ex. 0.01 is 1/100 (remember, 1 hundredth is 1/100)
How can a fraction be converted to a decimal?
By dividing the numerator by the denominator.
All fractions can be converted to a _____ or _____ decimal.
Terminating, repeating
Terminating or repeating decimals are ______ numbers.
Rational
Decimals that neither terminate not repeat are _____ numbers.
Irrational.
What are rational numbers?
Numbers that can be represented by integer fractions/the ratio of two numbers.
What is an irrational number?
A number that can not be represented by an integer/simple fraction.
