## Test your basic knowledge |

# Number Sense Vocab

**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. odd + odd**

**2. A set of operators - numbers - variables and grouping symbols; no equal sign**

**3. Median**

**4. Adding/subtracting decimals**

**5. Multiplying fractions**

**6. To change a percent to a decimal**

**7. Percent decrease**

**8. The answer to a subtraction problem**

**9. To perform a calculation - E.g. 2+2=4**

**10. The answer to a multiplication problem**

**11. Comparing decimal fractions**

**12. A shortcut for writing repeated multiplication**

**13. The property which allows you to add a number's opposite to it and always get 0 - The relationship of addition to subtraction or multiplication to division**

**14. Multiple-event probability**

**15. To find a number that is close to an exact answer - E.g. 23+24 is around 50**

**16. Reciprocal of number**

**17. Comparing positive fractions**

**18. 8x8=64 What is 64?**

**19. Two factors together that are multiplied to equal a larger number.**

**20. Rational numbers that expressed in decimal format that have fixed number of digits. 1.5 etc.**

**21. The expression of a number as a product of prime factors; use a factor tree!**

**22. The smallest number in a group of numbers**

**23. Percent increase**

**24. To drop a percent**

**25. Any of the symbols used to write numbers (0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9)**

**26. A line for representing and graphing numbers. Each point on the line corresponds to a number.**

**27. Not identical or equivalent to**

**28. To place a fraction in lowest terms**

**29. Simplifying complex fractions: two methods**

**30. Cannot be expressed in the form a/b. Include square roots of whole numbers that are not perfect squares and non terminating decimals that do not repeat. pi**

**31. Number divisible by 4**

**32. Answer to a division problem**

**33. Mode**

**34. A fraction whose numerator is greater than its denominator**

**35. Be identical or equivalent to**

**36. Average value**

**37. To make a percent**

**38. The greatest whole number that is a factor of two or more nonzero whole numbers**

**39. Number divisible by 9**

**40. Natural Numbers - Whole Numbers - Integers - Rational Numbers**

**41. Standard deviation: greater if...**

**42. A property of real numbers that states that the sum or product of a set of numbers is the same - regardless of how the numbers are grouped - (a+b)+c=a+(b+c) - e.g. (1+2)+3=1+(2+3)**

**43. Two expressions that are set equal to each other; a number sentence with an equal sign**

**44. A number that represents a part of a whole or a group; also means 'divided by' - E.g. 1/2 -3/4.5/6**

**45. When a number is larger than the other number. Example 65 > 56**

**46. odd + even**

**47. A letter that represents a value that may change**

**48. Reducing fractions**

**49. Any whole number that ends with 0 - 2 - 4 - 6 - or 8 - any whole number that can be divided by 2**

**50. A number made up of a whole number and a fraction**