| A | B |
|---|
| clustering | a method used to estimate a sum when all addends are close to the same value |
| front-end estimation | an estimating technique in which the front digits of the addends are added |
| scientific notation | a method of writing very large or very small numbers by using powers of 10 |
| common denominator | a denominator that is in two or more fractions |
| composite number | a number greater than 1 that has more than two whole-number factors |
| divisible | can be divided by a number without leaving a remainder |
| equivalent fractions | fractions that name the same amount or part |
| factor | a number that is multiplied by another number to get a product |
| greatest common factor (GCF) | the largest common factor of two or more given numbers |
| improper fraction | a fraction in which the numerator is greater than or equal to the denominator |
| like fractions | fractions that have the same denominator |
| mixed numbers | a number made up of a whole number that is not zero and a fraction |
| prime factorization | a number written as the product of its prime factors |
| prime number | a whole number greater than 1 that has exactly two factors, itself and 1 |
| proper fraction | a fraction in which the numerator is less than the denominator |
| repeating decimal | a decimal in which one or more digits repeat infinitely |
| simplest form | a fraction is in simplest form when the numerator and denominator have no common factors other than 1 |
| terminating decimal | a decimal number that ends, or terminates |
| unlike fractions | fractions with different denominators |
| common factor | a number that is a factor of two or more numbers |
