| A | B |
|---|
| tenths(place value) | first place to the rightr of the decimal point |
| percent | a ratio that compares a number to 100 |
| front-end estimation | estimation by looking at the digits in the greatest place value to find about how much |
| even number | a number divisible by 2 |
| odd numbers | a whole number not divisible by 2 |
| expanded notation | when a number is written as if it were an addition problem |
| divisor | the number by which a number is divided by |
| divisible | when a number can be divided exactly by a second number with no remainder |
| integers | the whole numbers and their negatives |
| estimate | a number close to an exact amount, tells about how much |
| two-digit divisors | a divisor that is two digits |
| prime number | a number with only two factors, itself and 1 |
| value | the worth of a digit, depending on its palcement in a number |
| thousandth place | the third place value to the right of the decimal |
| hundredths place | the second place to the right of the decimal point |
| compatible numbers | numbers that are easy to work with mentally |
| number line | a line with regular intervals that is used to compare the relative size of numbers |
| composite number | a number that has more than two factors |
| overestimate | an estimate that is greater than the actual answer |
| dividend | the number that is divided into a division problem |
| billion | the whole number that is one more than 999,999,999 |
| four digit factors | a factor with four digits |
| one hundredth | one of 100 equal parts |
| underestimate | an esimate that is less than the actual answer |
| mental math | finding an exact answer to a math problem without using paper and pencil |
| equation | an expression that shows how two things are equal |
| positive integers | integers greater than zero |
| factors | numbers that are multiplied |
| digit | any one of ten symbols used to write numbers |
| quotient | the answer in a division problem |
| compute | to determine by arithmetic means |
| multiple | the product of a hwole number and any other number |
