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






2. odd + even






3. Probability






4. Average value






5. To place a fraction in lowest terms






6. A value that does not change; any number






7. Multiple-event probability






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






9. 1/5 + 1/4=4/20 +5/20 and 20 is the...






10. Relationship in which a number is smaller than another






11. Reducing fractions






12. Adding/subtracting decimals






13. Number divisible by 9






14. 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?






15. Number divisible by 5






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






17. An equation showing 2 ratios are equal






18. Dividing decimals






19. 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






20. The largest number in a group of numbers






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






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






23. 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






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






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






26. Mode






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. To drop a percent






29. A number with more than two factors






30. 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?






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






32. The answer to a subtraction problem






33. Adding/subtracting fractions






34. Multiplying fractions






35. To change a percent to a decimal






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






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






38. Simplifying complex fractions: two methods






39. To make a percent






40. Standard deviation: greater if...






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






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






43. Natural Numbers - Whole Numbers - Integers - Rational Numbers






44. Number divisible by 4






45. The answer to a multiplication problem






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






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






48. Absolute value of number






49. 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.






50. The answer to an addition problem