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CLEP General Mathematics: Powers Exponents And Roots

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. To subtract powers of ten:






2. What number multiplied by itself is equal to 4? Well - 2. x 2 = 4 - so the answer is






3. Indicates the number to be multiplied.






4. Don't bother trying to find the square root of a negative number.






5. 5^1 =






6. To multiply powers of ten:






7. A number with an exponent of 2 is often said to be






8. 0^5 =






9. A number - when multiplied by itself - is equal to a given number.






10. Step 1: Add the exponents Step 2: Use the common base






11. Valid powers of 10 for engineering notation are:






12. Any number with a negative exponent is equal to






13. 10 - or 1 with the decimal point moved one place to the right






14. Because the exponent for the base-10 must be 0 or a multiple of 3 - the coefficient cannot always be a value between -9 and 9. Instead - the coefficients for engineering notation will be between






15. The square root of 9 is






16. When you decrease the value of the power-of-10 exponent






17. To divide powers that have the same base; what do you do to the divisor from the exponent of the dividend?






18. Allows you to express very large and very small numbers without using large numbers of digits and decimal places. It's all done with powers of ten.






19. When working with powers of ten and scientific notation it is often necessary to adjust the position of the decimal point in the coefficient or to change the value of the exponent. When changing one of these terms - it is important that






20. To add or subtract numbers written with exponents:






21. 100 - or 1 with the decimal point moved two places to the right






22. When moving the decimal point to the right (multiplying by 10)






23.






24. = 0.01 - or 1 with the decimal point moved two places to the left.






25. When you move the decimal point in the coefficient to the left






26. To divide powers of 10:






27. To find the cube root of any number - simply key in the number (the radicand) and press cube-root key. On most calculators - the cube-root function is a 2nd level function. This means you have to press the 2nd key before pressing the key for the






28. The cube root of zero is






29. Powers of ten can be added or subtracted only when their exponents






30. Valid powers-of-10 for engineering notation






31. The decimal part






32. Adding and subtracting powers of ten can be a bit more complicated than multiplying and dividing. The main problem is that powers of ten can be added or subtracted only when both terms have the






33. Scientific notation requires there to be only






34. To add powers of ten:






35. Represents 1 preceded by 17 zeros and a decimal point.






36. When you increase the value of the power-of-10 exponent






37. When you change the position of the decimal point in a coefficient value






38. Numbers with exponents can be directly multiplied or divided only when they have the






39. To multiply or divide exponent terms that do not have the same base:






40. Any number with an exponent of 1 is equal to






41. 1^4 =






42. There are no special rules for adding and subtracting numbers that are written with exponents.






43. 1 to any power is equal to






44. 10^-1 = 0.1 - or 1 with the decimal point moved one place to the left. 10^-2 = 0.01 - or 1 with the decimal point moved two places to the left. 10^-18 represents 1 preceded by 17 zeros and a decimal point.






45. To divide powers of ten:






46. The square root of zero is






47. To divide powers that have the same base:






48. A number with an exponent of 3 is often said to be






49. A negative exponent does not mean the decimal value is negative. It means the decimal value is






50. A very small number such as 0.000000674 can be written with scientific notation as