# 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. Answer to a multiplication problem

2. Number divisible by 4

3. Comparing positive fractions

4. Standard deviation: greater if...

5. To change a percent to a decimal

6. 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?

7. Multiplying fractions

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

9. Dividing fractions

10. The largest number in a group of numbers

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

12. Be identical or equivalent to

13. Number divisible by 3

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

15. Relationship in which a number is smaller than another

16. A value that does not change; any number

17. 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

18. Properties of 0

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

21. The smallest number in a group of numbers

22. To place a fraction in lowest terms

23. A number with more than two factors

24. Natural Numbers - Whole Numbers - Integers - Rational Numbers

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

26. Number divisible by 2

27. Simplifying complex fractions: two methods

28. Comparing decimal fractions

29. Answer to a division problem

30. Percent decrease

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

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

34. To find the answer for; solve

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

36. 1/5 + 1/4=4/20 +5/20 and 20 is the...

37. 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)

38. 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)

39. An equation showing 2 ratios are equal

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

41. Reducing fractions

42. To make a percent

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

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

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

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

48. Properties of numbers btw -1 and 1

49. Absolute value of number

50. 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.