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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. Multiple-event probability






2. The smallest number in a group of numbers






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






4. New whole






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






6. Reciprocal of number






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






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






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






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






11. Percent decrease






12. A number made up of a whole number and a fraction






13. 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?






14. 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)=






15. To make a percent






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






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






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






19. 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?






20. A shortcut for writing repeated multiplication






21. Standard deviation: greater if...






22. Median






23. Percent increase






24. To drop a percent






25. Probability






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






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






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






29. Multiplying decimals






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






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






32. Number divisible by 4






33. Adding/subtracting decimals






34. Reducing fractions






35. 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






36. Average A per B






37. 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)






38. Properties of 1 and -1

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39. 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)






40. Mode






41. Properties of numbers btw -1 and 1

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42. 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






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






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






45. The answer to a subtraction problem






46. odd + even






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






48. To find the answer for; solve






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






50. Answer to a multiplication problem







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Can you answer 50 questions in 15 minutes?


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