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






2. Number divisible by 3






3. Multiple-event probability






4. odd + even






5. The answer to a subtraction problem






6. Percent x whole






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






8. To drop a percent






9. The smallest number in a group of numbers






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






11. The answer to an addition problem






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






13. 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)






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






15. The largest number in a group of numbers






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






17. 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)






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






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






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






21. An equation showing 2 ratios are equal






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






23. Standard deviation: greater if...






24. 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






25. Relationship in which a number is smaller than another






26. Median






27. Properties of numbers btw -1 and 1

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28. 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?






29. How much a number is worth






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






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






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






33. A letter that represents a value that may change






34. 1/5 + 1/4=4/20 +5/20 and 20 is the...






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






36. Reciprocal of number






37. To change a percent to a decimal






38. Probability






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






40. To make a percent






41. 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






42. Number divisible by 2






43. Number divisible by 9






44. New whole






45. Answer to a division problem






46. Adding/subtracting decimals






47. Number divisible by 5






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






49. 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?






50. Average A per B