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






2. Reciprocal of number






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






4. 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?






5. 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






6. Relationship in which a number is smaller than another






7. Adding/subtracting fractions






8. Absolute value of number






9. The answer to a multiplication problem






10. Multiplying fractions






11. Answer to a division problem






12. 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)






13. 1/5 + 1/4=4/20 +5/20 and 20 is the...






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






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






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






17. Simplifying complex fractions: two methods






18. Adding/subtracting decimals






19. Properties of numbers btw -1 and 1

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20. Number divisible by 5






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






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






23. To change a percent to a decimal






24. A fraction whose numerator is greater than its denominator






25. 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.






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






27. 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)=






28. Average A per B






29. Dividing fractions






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






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






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






33. Number divisible by 9






34. A number with more than two factors






35. Number divisible by 2






36. New whole






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






38. Be identical or equivalent to






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






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






41. The answer to a subtraction problem






42. Comparing decimal fractions






43. 8x8=64 What is 64?






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






45. How much a number is worth






46. 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






47. Natural Numbers - Whole Numbers - Integers - Rational Numbers






48. To place a fraction in lowest terms






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






50. 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