| A | B |
|---|
| approximate | to obtain a number close to an exact amount |
| argument | a reason or reasons offered for or against something |
| conjecture | inference or judgement based on inconclusive or incomplete evidence |
| estimate | to find an approximate value or measurement of something |
| evidence | models, known facts, patterns, relationships, and counter examples |
| investigate | to research using careful observation and examination of the facts |
| reasonable | within likely bounds, sensible |
| compare | to look for similarities and/or differences |
| justify | to prove or show to be true using logic and/or evidence |
| benchmark (landmark) | a reference number that can be used to estimate the size of other numbers |
| skip counting | counting on using the multiples of a given number |
| square root | the quantity which when multiplied by itself will produce a given quantity |
| composite number | a number that has more than two factors |
| factor | one of two or more numbers that are multplied together to obtain a product |
| multiple | a number that is divisible by a given factor |
| prime number | a number having exactly 2 factors |
| square number | a number that is a product of a single factor multiplied by itself |
| even number | a whole number divisible by two |
| odd number | a whole number that is not divisible by two |
| dimensions | measurement in length, width, and often depth |
