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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. 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?






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






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






4. 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)






5. Number divisible by 5






6. Absolute value of number






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






8. odd + even






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






10. A letter that represents a value that may change






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






12. odd + odd






13. Average A per B






14. To place a fraction in lowest terms






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. Probability






17. A shortcut for writing repeated multiplication






18. Percent increase






19. The answer to a multiplication problem






20. Percent decrease






21. Adding/subtracting fractions






22. Dividing decimals






23. Comparing positive fractions






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






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






26. A number with more than two factors






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






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






29. 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






30. Multiple-event probability






31. Properties of 0

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32. 1/5 + 1/4=4/20 +5/20 and 20 is the...






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






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






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






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






37. Answer to a multiplication problem






38. Number divisible by 3






39. Number divisible by 2






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






41. Reducing fractions






42. The answer to a subtraction problem






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






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






45. Median






46. Dividing fractions






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






48. The smallest number in a group of numbers






49. Properties of numbers btw -1 and 1

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50. 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.