## 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. 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)**

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

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

**4. Average A per B**

**5. Reducing fractions**

**6. 1/5 + 1/4=4/20 +5/20 and 20 is the...**

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

**8. Percent increase**

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

**10. Answer to a division problem**

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

**12. The number at the top of a fraction; stands for the parts of a set you are considering - E.g. 3/4 What position is 3?**

**13. Answer to a multiplication problem**

**14. Multiplying fractions**

**15. In multiplication or addition - the order of two numbers may be switched around and the answer is the same. Ex: a+b = b+a. or (1x2) x 3=1x (2x3)**

**16. Number divisible by 3**

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

**20. Able to be divided evenly (without a remainder)**

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

**22. Percent x whole**

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

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

**25. Number divisible by 2**

**26. Relationship in which a number is smaller than another**

**27. A value that does not change; any number**

**28. New whole**

**29. The value of a digit based on its position within a number - e.g. 2 -432 The position of the numbers**

**30. A fraction out of 100 - %**

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

**32. Average value**

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

**34. A number with more than two factors**

**35. Mode**

**36. Adding/subtracting decimals**

**37. Properties of 0**

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

**39. 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)=**

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

**41. Comparing positive fractions**

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

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

**44. Probability**

**45. 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?**

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

**47. Be identical or equivalent to**

**48. 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**

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

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