Question | Answer |
standard form | a number written with digits |
expanded form | a number written with place values |
words | a number written out with actual words |
compatible numbers | numbers that are easy to compute quickly |
front end estimation | add the front numbers, estimate and add the end numbers, add to get a total |
commutative property of addition | changing the order of the numbers does not change the answer |
identity property of addition | zero plus a number will always be that number |
associative property of addition | changing the order of the numbers does not change the answer |
commutative property of multiplication | changing the order of the factors does not change the answer |
identity property of multiplication | any number times one is always one |
associative property of multiplication | changing the order of the factors does not change the answer |
multiply by ten | move the decimal one place to the right |
multiply by one hundred | move the decimal two places to the right |
divide by one thousand | move the decimal 3 places to the left |
divide by ten | move the decimal one place to the left |
terminating decimal | a decimal that stops |
repeating decimal | repeats a digit or group of digits over and over again, it doesn't stop |
expression | does not have an equal sign |
order of operations | PEMDAS (Parentheses, exponents, multiplication/division, addition/subtraction) |