Test your basic knowledge |

Number Sense Vocab

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. Rational numbers that expressed in decimal format that have fixed number of digits. 1.5 etc.
divisible
terminating decimals
expanded form using exponents
variables

2. In 4x4=16 - what is 4?
not equal
Reduce diagonally/vertically then multiply numerators and denominators
root numbers
odd

3. The expression of a number as a product of prime factors; use a factor tree!
order of operations
expression
range
prime factorization

4. 1/5 + 1/4=4/20 +5/20 and 20 is the...
common denominator
Part
ratio
improper fraction

5. Add up the digits; if the sum is a multiple of 3 the number is divisible by 3
Sum of values/number of values
rational numbers
divisibility by 3 rule
LCM is LCD

6. An equation showing 2 ratios are equal
Last two digits divisible by 4
simplify
proportion
expanded form using exponents

7. Dividing decimals
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
Last two digits divisible by 4
order of operations
Middle value

8. Able to be divided evenly (without a remainder)
Drop percent - move decimal point two place to left
divisible
Divide out largest common factor
square number

9. odd + even
simplify
fraction
odd
digit

10. The answer to a multiplication problem
product
0 and 1: Reciprocal greater than number - square less than number - positive number's product smaller than number - negative number's product larger than number; -1 and 0: reciprocal less than number
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
denominator

11. A whole number such as 1 - 3 - 5 and so on that cannot be evenly divisible by 2
expanded form using exponents
expression
odd number
place value

12. Two expressions that are set equal to each other; a number sentence with an equal sign
even number
Middle value
equivalent
equation

13. Number divisible by 6
Add zeros to decimals until all decimals have same number of digits
equivalent
terminating decimals
Divisible by 2 and 3

14. 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?
denominator
factor
evaluate
distributive property

15. PEMDAS - Parentheses - Exponents - Multiplication & Division (L to R) - Addition & Subtraction (L to R)
quotient
fraction
order of operations
least

16. A set of operators - numbers - variables and grouping symbols; no equal sign
number line
irrational numbers
expression
associative property

17. Be identical or equivalent to
equal
whole number
Middle value
evaluate

18. Numbers that are easy to compute mentally - E.g. 34 / 5 is close to 35 / 5
Total A/total B
estimate
product
compatible numbers

19. The smallest number that is a multiple of both numbers. (the LCM of 15 and 6 is 30)
Divisible by 2 and 3
least common multiple
number line
identity property

20. Mode
equal
Divide by 100%
Value occurring most frequently
Number of desired outcomes/number of total possible outcomes

21. A shortcut for writing repeated multiplication
exponents
quotient
variables
distributive property

22. Dividing fractions
product
evaluate
Invert second term - then multiply
prime number

23. Number divisible by 2
Last digit divisible by 2
greatest common factor
inverse property
number line

24. A number that represents a part of a whole or a group; also means 'divided by' - E.g. 1/2 -3/4.5/6
fraction
odd number
even
compatible numbers

25. Standard deviation: greater if...
Greater spread in values
expression
Divide out largest common factor
odd number

26. Simplifying complex fractions: two methods
compatible numbers
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
denominator
even number

27. Multiplying fractions
equivalent
Total A/total B
mixed number
Reduce diagonally/vertically then multiply numerators and denominators

28. Rational numbers in decimal form that have a block of on or more digits that repeat continuously
repeating decimals
even
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
Divide out largest common factor

29. A number made up of a whole number and a fraction
mixed number
prime number
irrational numbers
common denominator

30. Percent decrease
range
estimate
(Amount of decrease/original whole) x100%
factor pair

31. A number written in expanded form with the place values written in exponential form - E.g. 2432=2000+400+30+2
mixed number
expanded form using exponents
Line up decimal points
Sum of digits divisible by 3

32. 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)=
distributive property
order of operations
Multiplying/dividing number by 1 doesn't change number; multiplying/dividing number by -1 changes sign; sum of number of -1 times number is 0
Greater spread in values

33. A comparison of 2 numbers; one form is a fraction
proportion
repeating decimals
ratio
sum

34. Reciprocal of number
Value occurring most frequently
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
1 dividing by number
associative property

35. 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?
compute
numerator
decimal
Divisible by 2 and 3

36. 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
Divisible by 2 and 3
identity property
numerator
divisible

37. Average value
Number of desired outcomes/number of total possible outcomes
Line up decimal points
Sum of values/number of values
odd number

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)
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
associative property
Divide out largest common factor
value

39. To perform a calculation - E.g. 2+2=4
compute
percent
Drop percent - move decimal point two place to left
place value

40. A number without fractions; an integer- E.g. 0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9...
Sum of digits divisible by 3
factor pair
Add zeros to decimals until all decimals have same number of digits
whole number

41. 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
irrational numbers
common denominator
Value occurring most frequently
product

42. To change a percent to a decimal
Original whole +/- amount of change
Drop percent - move decimal point two place to left
compensation
commutative property

43. A line for representing and graphing numbers. Each point on the line corresponds to a number.
Divisible by 2 and 3
inverse property
number line
square number

44. A letter that represents a value that may change
digit
variables
whole number
product

45. Properties of 0

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183

46. A number with one or more digits to the right of the decimal point - E.g. .33
decimal
Sum of digits divisible by 3
product
compatible numbers

47. Probability
Number of desired outcomes/number of total possible outcomes
Sum of values/number of values
number line
compensation

48. A fraction out of 100 - %
percent
not equal
compensation
least

49. Average A per B
Part
Original whole +/- amount of change
Total A/total B
product

50. Answer to a multiplication problem
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
sum
product
irrational numbers