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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 that results from multiplying a factor by itself






2. odd + odd






3. 1/5 + 1/4=4/20 +5/20 and 20 is the...






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






5. Dividing fractions






6. Answer to a multiplication problem






7. Standard deviation: greater if...






8. A fraction whose numerator is greater than its denominator






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






10. Adding/subtracting decimals






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






12. Simplifying complex fractions: two methods






13. A number with more than two factors






14. Reducing fractions






15. Absolute value of number






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






17. 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)






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






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






20. Reciprocal of number






21. Multiplying decimals






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






23. Adding/subtracting fractions






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. To place a fraction in lowest terms






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






27. 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)






28. 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.






29. New whole






30. To change a percent to a decimal






31. 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?






32. Not identical or equivalent to






33. odd + even






34. Properties of numbers btw -1 and 1

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35. Average A per B






36. Probability






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






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






39. 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)=






40. Number divisible by 6






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






42. 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






43. Comparing positive fractions






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






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






46. The value of a digit based on its position within a number - e.g. 2 -432 The position of the numbers






47. Percent decrease






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






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






50. The largest number in a group of numbers