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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. Natural Numbers - Whole Numbers - Integers - Rational Numbers






2. 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






3. Properties of 0

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4. 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






5. To change a percent to a decimal






6. Reducing fractions






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






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






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






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






11. Reciprocal of number






12. To drop a percent






13. Answer to a multiplication problem






14. 8x8=64 What is 64?






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






16. Multiple-event probability






17. How much a number is worth






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






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






20. Standard deviation: greater if...






21. The answer to a subtraction problem






22. Answer to a division problem






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. A shortcut for writing repeated multiplication






25. Comparing decimal fractions






26. Probability






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






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






29. Number divisible by 4






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






31. 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)






32. A letter that represents a value that may change






33. A number with more than two factors






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






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






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






37. Mode






38. An equation showing 2 ratios are equal






39. The largest number in a group of numbers






40. 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)






41. Average value






42. A fraction out of 100 - %






43. 1/5 + 1/4=4/20 +5/20 and 20 is the...






44. Multiplying fractions






45. The answer to an addition problem






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






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






48. Simplifying complex fractions: two methods






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






50. Average A per B