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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. 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.






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






3. Relationship in which a number is smaller than another






4. New whole






5. Number divisible by 3






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






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






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






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






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






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






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






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






14. Multiplying decimals






15. Reciprocal of number






16. 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






17. The answer to a subtraction problem






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






19. Properties of 0

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






21. To make a percent






22. Number divisible by 5






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






24. 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






25. A letter that represents a value that may change






26. 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?






27. 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?






28. A fraction whose numerator is greater than its denominator






29. Reducing fractions






30. Simplifying complex fractions: two methods






31. Comparing decimal fractions






32. The answer to a multiplication problem






33. To drop a percent






34. The largest number in a group of numbers






35. A number with more than two factors






36. Be identical or equivalent to






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






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






39. A value that does not change; any number






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






41. How much a number is worth






42. An equation showing 2 ratios are equal






43. Average value






44. Absolute value of number






45. 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






46. Not identical or equivalent to






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






48. Percent x whole






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






50. Number divisible by 6