| A | B |
|---|
| magnitude estimate | a guess at what place value your answer will be |
| open number sentence | number model without an answer--use a letter instead |
| friendly numbers | numbers that are easy to multiply to solve long division |
| map scale | tells you what distance an inch represents on a map |
| variable | letter that represents a number |
| exponents | little number above a number |
| exponent tells you to | multiply the big number (ex. 5x5) |
| polygon | any shape with 3 or more straight sides and closed angles |
