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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. Dividing decimals






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






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






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






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






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






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






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






9. A number with more than two factors






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






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






12. Number divisible by 5






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






14. Reducing fractions






15. New whole






16. Properties of 0

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17. Number divisible by 6






18. A letter that represents a value that may change






19. Percent increase






20. Median






21. The smallest number in a group of numbers






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






23. A value that does not change; any number






24. Answer to a multiplication problem






25. An equation showing 2 ratios are equal






26. Absolute value of number






27. Reciprocal of number






28. Number divisible by 3






29. 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)






30. Percent x whole






31. 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






32. 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.






33. To change a percent to a decimal






34. The answer to a multiplication problem






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






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






37. 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)






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






39. Number divisible by 9






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






41. Probability






42. Properties of numbers btw -1 and 1

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43. Average value






44. A fraction out of 100 - %






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






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






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






48. To make a percent






49. To place a fraction in lowest terms






50. A shortcut for writing repeated multiplication