| A | B |
| Numerator | Top number of a fraction |
| Denominator | Bottom number of a fraction |
| Estimate | To find a number that is close to the exact answer |
| Round | To find the nearest value of a number to a given place |
| Decimal | A fractional part that used place values and a decimal point to show tenths, hundredths, and so on... |
| Decimal Point | A point in a number that separates the places less than one with those greater than or equal to one |
| Dividend | A number to be divided |
| Divisor | A number by which a dividend is divided |
| Addends | Are the numbers you add to answer a problem |
| Subtrahends | Are the numbers you subtract to answer a problem |
| Minuend | The number you subtract |
| Difference | The answer to a subtraction problem |
| Sum | The answer to an addition problem |
| Quotient | The answer in division |
| Remainder | The number left over when you divided as far as you can |
| Product | The answer in multiplication |