THINGS YOU SHOULD KNOW

                                                 THINGS YOU SHOULD KNOW
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1. What are addends?
    Numbers in addition are called addends.

2. What are cardinal numbers?
    Numbers used for counting are called cardinal numbers.

3. What is decline?
    When the value of number decreases then that number is called as decline.

4. What is minuend?
    A number, from which another number is subtracted, is called as minuend.

5. What is a numeral?
    A word or symbol used to represent a number is called a numeral.

6. What are ordinal numbers?
     Numerals that show order are called as ordinal numbers.

7. What is a prime number?
    A number that can be built only one way using tiles is called a prime number.

8. What is an odd number?
 An odd number is a whole number that has a 1, 3, 5, 7, and 9 in ones      place.When an odd number is divided by two there will be always a remainder greater than zero.

9. What is a progression?
    A sequence of numbers that has a fixed pattern.

10. What is subtrahend?
      The number that is subtracted is called a subtrahend.

11. What is a protractor?
     A protractor is an instrument in shape of a semicircle used for drawing and    measuring angles in degrees.

12. What is an abundant number?

An abundant number is a number in which the sum of its factors is large than two times the number, example; 12, 18.20…


13. What is a deficient number?
     A number in which the sum of its factors is less than two times the number. Example 5,7,10…

14. What is a perfect number?

A number in which the sum of its factors equals two times the number.The first four perfect numbers are 6, 28 ,496 ,8218.

15. What is a deltoid?

    A deltoid is a kite.

16. What is a complex fraction?

      A complex fraction has a mixed or fractional number for its numerator or denominator,
Example (3/4)/ (2/5.)