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

**2. Standard deviation: greater if...**

**3. New whole**

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

**5. PEMDAS - Parentheses - Exponents - Multiplication & Division (L to R) - Addition & Subtraction (L to R)**

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

**7. Rational numbers in decimal form that have a block of on or more digits that repeat continuously**

**8. A number written in expanded form with the place values written in exponential form - E.g. 2432=2000+400+30+2**

**9. How much a number is worth**

**10. Number divisible by 6**

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

**12. Answer to a multiplication problem**

**13. Add up the digits; if the sum is a multiple of 3 the number is divisible by 3**

**14. The bottom number in a fraction; tells how many parts a whole is divided into OR how many parts in a group - E.g. 2/4 and what position is the 4?**

**15. A property indicating a special way in which multiplication is applied to addition of two or more numbers in which each term inside a set of parentheses can be multiplied by a factor outside the parentheses - such as a(b + c) = ab + ac - or 7x (4+1)=**

**16. 8x8=64 What is 64?**

**17. Dividing decimals**

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

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

**20. In 4x4=16 - what is 4?**

**21. Percent x whole**

**22. A number without fractions; an integer- E.g. 0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9...**

**23. 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)**

**24. odd + odd**

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

**26. Numbers that are easy to compute mentally - E.g. 34 / 5 is close to 35 / 5**

**27. Number divisible by 4**

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

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

**30. To make a percent**

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

**32. Be identical or equivalent to**

**33. 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**

**34. To find the answer for; solve**

**35. Adding/subtracting decimals**

**36. Properties of 0**

**37. Percent increase**

**38. The smallest number that is a multiple of both numbers. (the LCM of 15 and 6 is 30)**

**39. A number with only two factors - one and itself - E.g. 3 -7 -11 -13 -17 -19...**

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

**41. A number that is multiplied by another number to find a producr**

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

**43. The difference between the greatest and the least numbers in a set of data.**

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

**45. The largest number in a group of numbers**

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

**47. A comparison of 2 numbers; one form is a fraction**

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

**49. When you add 0 to a number - or mulltiply a number by 1 - the result is the same number - e.g. Identity Property of Multiplication: 21x1=1x21=21 or 300x 1 = 300**

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