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Number Sense Vocab

Subjects : math, number-sense
  • Answer 50 questions in 15 minutes.
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  • Match each statement with the correct term.
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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. The largest number in a group of numbers

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

3. 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)

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

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

6. A fraction whose numerator is greater than its denominator

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

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

9. Multiplying fractions

10. Relationship in which a number is smaller than another

11. Standard deviation: greater if...

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

13. Percent increase

14. Multiple-event probability

15. 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

16. Answer to a division problem

17. 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)

18. Number divisible by 6

19. The smallest number in a group of numbers

20. 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

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

22. Number divisible by 9

23. Number divisible by 2

24. Dividing decimals

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

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

27. A shortcut for writing repeated multiplication

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

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

30. 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.

31. To make a percent

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

33. Probability

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

35. A number with only two factors - one and itself - E.g. 3 -7 -11 -13 -17 -19...

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

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

38. Median

39. A fraction out of 100 - %

40. Reciprocal of number

41. To find the answer for; solve

42. To place a fraction in lowest terms

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

44. odd + even

45. Reducing fractions

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. Average A per B

48. Percent x whole

49. Percent decrease

50. Number divisible by 3