bar notation is often used to indicate that a digit or group of digits repeats.
Base
2-9
A product of repeated factors can be expressed as a power, that is, using an exponent and a base.
Dimensional Analysis
2-3
Dimensional analysis is the process of including units of measurement when you compute. You can use dimensional analysis to check whether your answers are reasonable.
Exponent
2-9
A repeated factors can be expressed as a power, that is, using an exponent and a base.
Like Fractions
2-5
Fractions that have the same denominators are called like fractions.
Multiplicative Inverse
2-4
Two numbers with a product of 1 are multiplicative inverses, or reciprocals, of each other.
Power
2-9
A product of repeated factors can be expressed as a power, that is, using an exponent and a base.
Rational Number
2-1
Numbers that can be written as fractions are called rational numbers.
Reciprocals
2-4
Two numbers with a product of 1 are multiplicative inverses, or reciprocals, of each other.
Repeating Decimal
21
Repeating decimals have a pattern in their digits that repeats without end.
Scientific Notation
2-10
Scientific notation is a compact way of writing numbers with absolute values that are very large or very small.
Terminating Decimal
2-1
A decimal like 0.625 is called a terminating decimal because the division ends, or terminates, with a remainder of 0.
Unlike Fractions
2-6
Fractions with unlike denominators are called unlike fractions.
2-1
To change a fraction into a decimal you just divide the top number by the bottom number.
EXAMPLE:
1/2 = 0.5
To change a decimal into a fraction you have to look at the number and see what place its in .
EXAMPLE:
0.9 = 9/10
Comparing fractions and decimals using < > or =
EXAMPLE:
0.5 = 1/2
if you divide one and two you will get 0.5 so they will be equill.
2- 10
3,780,000,000,000,000,000
3.78 x 10 to the 18th power
multiply by 10
count how many numbers after the first number
2-1
To change a fraction into a decimal you just divide the top number by the bottom number.
EXAMPLE:
1/2 = 0.5
To change a decimal into a fraction you have to look at the number and see what place its in .
EXAMPLE:
0.9 = 9/10
Comparing fractions and decimals using < > or =
EXAMPLE:
0.5 = 1/2
if you divide one and two you will get 0.5 so they will be equill.
2- 10
3,780,000,000,000,000,000
3.78 x 10 to the 18th power
multiply by 10
count how many numbers after the first number
463,000,000
4.63 x 10 to the 8th power
0.0000013
1.3 x 10 to the -6th power
0.000456
4.56 x 10 to the -4th power