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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. Percent decrease






2. Average value






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






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






5. The smallest number in a group of numbers






6. Number divisible by 6






7. 1/5 + 1/4=4/20 +5/20 and 20 is the...






8. A number that results from multiplying a factor by itself






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






10. Properties of 1 and -1

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11. Reciprocal of number






12. Average A per B






13. Natural Numbers - Whole Numbers - Integers - Rational Numbers






14. New whole






15. The answer to a multiplication problem






16. 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






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






18. To place a fraction in lowest terms






19. 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






20. Multiple-event probability






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






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






23. Dividing decimals






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






25. 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?






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






27. The answer to an addition problem






28. 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






29. Reducing fractions






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






31. Properties of numbers btw -1 and 1

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32. Median






33. Absolute value of number






34. The answer to a subtraction problem






35. A letter that represents a value that may change






36. Dividing fractions






37. 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)=






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






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






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






41. A number with more than two factors






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






43. 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.






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






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






46. 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)






47. Simplifying complex fractions: two methods






48. In 4x4=16 - what is 4?






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






50. Answer to a multiplication problem







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Can you answer 50 questions in 15 minutes?


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