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






2. Standard deviation: greater if...






3. Not identical or equivalent to






4. The largest number in a group of numbers






5. 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)






6. Average A per B






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






8. Answer to a division problem






9. Number divisible by 5






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






11. Percent increase






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






13. Properties of 1 and -1


14. New whole






15. 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)=






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






17. Number divisible by 9






18. Comparing positive fractions






19. 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.






20. Be identical or equivalent to






21. The smallest number in a group of numbers






22. Multiplying fractions






23. Absolute value of number






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






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






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






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






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






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






30. To change a percent to a decimal






31. Answer to a multiplication problem






32. A number with one or more digits to the right of the decimal point - E.g. .33






33. Natural Numbers - Whole Numbers - Integers - Rational Numbers






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






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






36. 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






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






38. Median






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






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






41. How much a number is worth






42. Multiplying decimals






43. Dividing fractions






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






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






46. Probability






47. To make a percent






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






49. Number divisible by 2






50. A shortcut for writing repeated multiplication