Test your basic knowledge |

CLEP General Mathematics: Number Systems And Sets

Subjects : clep, math
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. A number is divisible by 4 if






2. A number is divisible by 9 if






3. Sum






4. In the Rectangular Coordinate System - the direction to the left along the horizontal line is






5. An equation - or system of equations - in two or more variables defines






6. Integers greater than zero and less than 5 form a set - as follows:






7. Viewed in this way the multiplication of a complex number by i corresponds to rotating a complex number






8. The set of all complex numbers is denoted by






9. If z is a real number (i.e. - y = 0) - then r = |x|. In general - by Pythagoras' theorem - r is the distance of the point P representing the complex number z to the origin.






10. The place value which corresponds to a given position in a number is determined by the






11. This formula can be used to compute the multiplicative inverse of a complex number if it is given in






12. The greatest of 3 consecutive whole numbers - the smallest of which is F






13. Any number that is exactly divisible by a given number is a






14. The square roots of a + bi (with b ? 0) are - where and where sgn is the signum function. This can be seen by squaring to obtain a + bi.






15. A number that has factors other than itself and 1 is a






16. LAWS FOR COMBINING NUMBERS






17. Are not necessary. That is - the elements of {2 - 2 - 3 - 4} are simply {2 - 3 - and 4}






18. Are used to indicate sets






19. Less than






20. Decreased by






21. Any number that la a multiple of 2 is an






22. The real and imaginary parts of a complex number can be extracted using the conjugate:






23. Quotient






24. This law can be applied to subtraction by changing signs in such a way that all negative signs are treated as number signs rather than operational signs.That is - some of the addends can be negative numbers.






25. If two equal quantities are multiplied by the same quantity - the resulting products are equal. If equals are multiplied by equals - the products are equal.






26. This law can be applied to subtraction by changing signs so that all negative signs become number signs and all signs of operation are positive.






27. Number X decreased by 12 divided by forty






28. Total






29. Number symbols






30. Product of 16 and the sum of 5 and number R






31. The numbers which are used for counting in our number system are sometimes called






32. If the same quantity is subtracted from each of two equal quantities - the resulting quantities are equal. If equals are subtracted from equals - the results are equal.






33. In the Rectangular Coordinate System - On the vertical line - direction ________ is positive






34. Product






35. This law states that the product of two or more factors is the same regardless of the order in which the factors are arranged. Negative signs require no special treatment in the application of this law.






36. One asks whether there are any rational points (points all of whose coordinates are rationals) or integral points (points all of whose coordinates are integers) on the curve or surface. If there are any such points - the next step is to ask how many






37. Has an equal sign (3x+5 = 14)






38. The defining characteristic of a position vector is that it has






39. Is a number that can be expressed in the form where a and b are real numbers and i is the imaginary unit - satisfying i2 = -1. For example - -3.5 + 2i is a complex number. It is common to write a for a + 0i and bi for 0 + bi. Moreover - when the imag






40. If two equal quantities are divided by the same quantity - the resulting quotients are equal. If equals are divided by equals - the results are equal.






41. Consists of all numbers of the form - where a and b are rational numbers and d is a fixed rational number whose square root is not rational.






42. The number touching the variable (in the case of 5x - would be 5)






43. Is called the real part of z - and the real number b is often called the imaginary part. By this convention the imaginary part is a real number - not including the imaginary unit: hence b - not bi - is the imaginary part. (Others - however call bi th






44. The relative greatness of positive and negative numbers






45. In particular - the square of the imaginary unit is -1: The preceding definition of multiplication of general complex numbers follows naturally from this fundamental property of the imaginary unit. Indeed - if i is treated as a number so that di mean






46. Plus






47. Studies algebraic properties and algebraic objects of interest in number theory. (Thus - analytic and algebraic number theory can and do overlap: the former is defined by its methods - the latter by its objects of study.) A key topic is that of the a






48. One term (5x or 4)






49. In the Rectangular Coordinate System - On the vertical line - direction _______ is negative






50. Any number that is not a multiple of 2 is an