| A | B |
|---|
| sum | result when numbers are added |
| difference | numbers when numbers are subtracted |
| dividend | number to be divided; for example, the 10 in "10 divided by 2" |
| divisor | number another number is being "divided by" |
| quotient | result when one number is divided by another |
| order of operations | agreed upon steps for completing mathematical procedures (e.g. parentheses first; exponents second) |
| commutative property | (16 + 2) + 3 = 3 + (16 + 2) |
| associative property | (16 + 2) + 3 = 16 + (2 + 3) |
| distributive property | 16(2+3) = 16(2) + 16(3) |
| additive identity | any number plus 0 = the number |
| multiplicative identity | any number times 1 = 1 |
| prime number | number greater than 1 whose only factors are 1 and itself; for example, 7 |
| composite number | number which can be factored into something other than 1 and itself; for example, 27 |
| prime factors | most basic numbers into which a number can be divided; for example, 20's are 2, 2, and 5 |
| factors | list of all the pairs of numbers into which a number can be divided; for example, 15's are 1, 3, 5 15 |
| multiples | results when a given number is multiplied by 1, by 2, by 3,... |
| place value | The value of a digit's position in a number; for example, the __ of 3 in 321 is hundreds |
| fraction | Expresses a portion of the whole |
| numerator | upper portion of a fraction |
| denominator | lower portion of a fraction (number of parts in the whole) |
| decimal | fraction expressed using digits to the right of a decimal point |
| decimal place | tenths, hundredths, thousandths, ten thousandths,... |
| percent | How many per 100? |
| PEMDAS | 1. parentheses 2. exponents 3. multiplication & division 4. addition & subtraction |
