## 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 largest number in a group of numbers**

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

**3. 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)**

**4. A number that results from multiplying a factor by itself**

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

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

**7. 1/5 + 1/4=4/20 +5/20 and 20 is the...**

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

**9. Multiplying fractions**

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

**11. Standard deviation: greater if...**

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

**13. Percent increase**

**14. Multiple-event probability**

**15. 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**

**16. Answer to a division problem**

**17. 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)**

**18. Number divisible by 6**

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

**20. 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**

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

**22. Number divisible by 9**

**23. Number divisible by 2**

**24. Dividing decimals**

**25. Two numbers or expressions that mean the same thing - E.g. 2/3=4/6**

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

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

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

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

**30. Choosing numbers close to the numbers in a problem - and then adjusting the answer to compensate for the numbers chosen - E.g. 23 + 18 and 23+20=43 Since 2 was added to 18 to make 20 - we need to take 2 away from 43.**

**31. To make a percent**

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

**33. Probability**

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

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

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

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

**38. Median**

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

**40. Reciprocal of number**

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

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

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

**44. odd + even**

**45. Reducing fractions**

**46. 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**

**47. Average A per B**

**48. Percent x whole**

**49. Percent decrease**

**50. Number divisible by 3**