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Math Terms Set #1
Vocabulary for chapter 1-6
| Question | Answer |
|---|---|
| addend | any number being added In the equation 4+2 = 6 the addends are 4 and 2 |
| associative property | When three or more numbers are added or multiplied, the sum is the same regardless of the grouping of the addends. Addition example: (2 + 3) + 4 = 2 + (3 + 4) Multiplication example: (2 x 3) x 4 = 2 x (3 x 4) |
| commutative property | When two numbers are added or multiplied, changing their order does not change their sum or product Addition example: 2x3 = 6 and 3x2= 6 Multiplication example: 3+4=7 and 4+3=7 |
| compare | to determine if something is greater than, less than or equal to example: 4 < 6 |
| divisible | can be divided by For example, 18 is divisible by 6 |
| difference | the answer to a subtraction problem |
| distributive property | redistributing numbers in a multiplication problem to create two addends. This makes it easier to do mental math with larger numbers. For example: 4 x 53 is the same as (4 x 50) + (4 x 3). |
| divide | split into equal parts or groups |
| dividend | the number that is divided by another number (this is the number that is "inside the house¨) |
| divisor | the number that is doing the dividing (this is the number that is ¨ outside the house¨) |
| equation | a number sentence with an equal sign 10+9=19 |
| estimate/approximate | rounding numbers to make them easier to add/subtract/multiply or divide |
| factor | two or more numbers multiplied together |
| inverse operations | two operations that are the opposite of each other addition is the opposite of subtraction subtraction is the opposite of addition |
| word form | the number written out in words 1,752 is one thousand seven hundred fifty two |
| expanded form | the number stretched out to show place values 1,752 is 1000+700+50+2 |
| standard form | just writing out the numbers 1,752 |
| variable | an unknown number which can be represented with a letter or a symbol - variables will change based on the equation Example: n+9=10 n=1 |
| sum | the answer to an addition problem |
| product | the answer to a multiplication problem |
| subtract | to take away or remove (minus) |
| remainder | the leftovers in a division problem |
| reasonableness | an answer based on good sense |
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