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Number Sense Vocab

Subjects : math, number-sense
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. Properties of 1 and -1

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2. 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)






3. Natural Numbers - Whole Numbers - Integers - Rational Numbers






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






5. A whole number such as 1 - 3 - 5 and so on that cannot be evenly divisible by 2






6. 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?






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






8. Number divisible by 9






9. 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)






10. odd + odd






11. Answer to a multiplication problem






12. To drop a percent






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






14. Number divisible by 6






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






16. A number that results from multiplying a factor by itself






17. Able to be divided evenly (without a remainder)






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






19. Properties of 0

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20. To make a percent






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






22. To find the answer for; solve






23. odd + even






24. Average A per B






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






26. A fraction whose numerator is greater than its denominator






27. A fraction out of 100 - %






28. 8x8=64 What is 64?






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






30. Mode






31. 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






32. A number with more than two factors






33. The smallest number in a group of numbers






34. A value that does not change; any number






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






36. Percent increase






37. In 4x4=16 - what is 4?






38. Percent x whole






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






40. The largest number in a group of numbers






41. Adding/subtracting fractions






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






43. Probability






44. 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?






45. 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)=






46. Dividing fractions






47. 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.






48. The answer to a subtraction problem






49. A shortcut for writing repeated multiplication






50. Relationship in which a number is smaller than another