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Number Sense 2
Vocabulary - number sense
| Question | Answer |
|---|---|
| equivalent fractions | different fractions that name the same amount |
| ratio | a comparison of two numbers (using division) |
| multiple | the product of the number and any whole number |
| divisor | the number that divides into the dividend |
| numerator | the part of a fraction that tells the parts of the whole |
| composite number | a number that has more than two factors |
| lowest form | a fraction that cannot be divided by any common factors |
| fraction line | a symbol used to separate whole numbers and numbers less than one |
| prime number | a number that has exactly two factors, one and itself |
| greatest common factor | used to reduce fractions - largest factor of two or more numbers |
| factor | a number, when multiplied, gives a product; an integer(number) that divides evenly in a number |
| improper fraction | a fraction greater than one |
| numerator | the part of a fraction that tells parts of the whole |
| even number | a number that ends with a 0,2,4,6, or 8 |
| fraction line | a symbol that means division; numerator divided by denominator |
| least common multiple | smallest multiple of two numbers; used to find a least common denominator |
| quotient | the number you get when you divide a dividend by a divisor |
| product | the number you get when you multiply two or more factors |
| percent | per 100; a ratio that compares a number to 100 |
| decimal | a number less than one that represents tenths, hundredths, thousandths,. . . |
| reciprocal | when the numerator and denominator are flipped |
| odd number | a number that ends with 1, 3, 5, 7, or 9 |
| divisibility rule for 2 | any number that end with 0, 2, 4, 6, or 8 |
| divisibility rule for 3 | the sum of the digits equals 3, 6, or 9 |
| divisibility rule for 5 | any number that ends with a 0 or 5 |
| divisibility rule for 9 | the sum of the digitis equals 9 |
| divisibility rule for 10 | any number that ends with 0 |