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Test your basic knowledge |
Number Sense Vocab
Start Test
Study First
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. Dividing decimals
rational numbers
compatible numbers
percent
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
2. 8x8=64 What is 64?
perfect square
root numbers
identity property
Value occurring most frequently
3. Number divisible by 4
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
Sum of digits divisible by 9
terminating decimals
Last two digits divisible by 4
4. When a number is larger than the other number. Example 65 > 56
value
greater than
Part
mixed number
5. The answer to a subtraction problem
value
denominator
Last two digits divisible by 4
difference
6. Be identical or equivalent to
Total A/total B
equal
factor
Original whole +/- amount of change
7. A letter that represents a value that may change
expanded form using exponents
variables
Number of decimal places is total number of decimals places in factors multiplied
compensation
8. A fraction whose numerator is greater than its denominator
Last two digits divisible by 4
commutative property
improper fraction
Greater spread in values
9. Number divisible by 3
Sum of digits divisible by 3
Divide out largest common factor
Last digit 0 or 5
factor pair
10. Comparing positive fractions
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
odd number
fraction
square number
11. Answer to a multiplication problem
product
Number of decimal places is total number of decimals places in factors multiplied
Value occurring most frequently
percent
12. odd + even
inverse property
odd
rational numbers
Drop percent - move decimal point two place to left
13. Relationship in which a number is smaller than another
Invert second term - then multiply
perfect square
Greater spread in values
less than
14. Reciprocal of number
1 dividing by number
root numbers
Add zeros to decimals until all decimals have same number of digits
product
15. Average value
Total A/total B
evaluate
Sum of values/number of values
divisibility by 3 rule
16. Rational numbers in decimal form that have a block of on or more digits that repeat continuously
least
percent
repeating decimals
Original whole +/- amount of change
17. 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)
divisibility by 3 rule
commutative property
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
number line
18. The greatest whole number that is a factor of two or more nonzero whole numbers
root numbers
Last digit 0 or 5
factor pair
greatest common factor
19. Standard deviation: greater if...
order of operations
Greater spread in values
estimate
divisibility by 3 rule
20. The answer to an addition problem
sum
(Amount of increase/original whole) x100%
simplify
Last digit divisible by 2
21. A whole number such as 1 - 3 - 5 and so on that cannot be evenly divisible by 2
odd number
constants
Drop percent - move decimal point two place to left
not equal
22. Multiplying fractions
Value occurring most frequently
(Amount of decrease/original whole) x100%
Reduce diagonally/vertically then multiply numerators and denominators
constants
23. Probability
composite number
Number of desired outcomes/number of total possible outcomes
estimate
product
24. Multiplying decimals
estimate
constants
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
Number of decimal places is total number of decimals places in factors multiplied
25. A number that is multiplied by another number to find a producr
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
product
greater than
factor
26. To find a number that is close to an exact answer - E.g. 23+24 is around 50
compensation
divisibility by 3 rule
exponents
estimate
27. How much a number is worth
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
denominator
value
Last digit divisible by 2
28. Two expressions that are set equal to each other; a number sentence with an equal sign
product
commutative property
Sum of values/number of values
equation
29. To change a percent to a decimal
Drop percent - move decimal point two place to left
Number w/o signs
odd number
perfect square
30. Percent increase
(Amount of increase/original whole) x100%
Last digit divisible by 2
Sum of values/number of values
digit
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)
expression
associative property
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
Divide by 100%
32. In 4x4=16 - what is 4?
root numbers
Last digit divisible by 2
divisible
greatest
33. A number without fractions; an integer- E.g. 0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9...
Last two digits divisible by 4
whole number
least common multiple
difference
34. Any whole number that ends with 0 - 2 - 4 - 6 - or 8 - any whole number that can be divided by 2
Sum of digits divisible by 9
divisible
compute
even number
35. To make a percent
product
Reduce diagonally/vertically then multiply numerators and denominators
(Amount of decrease/original whole) x100%
Multiply by 100%
36. Median
Sum of values/number of values
Divide out largest common factor
composite number
Middle value
37. Properties of 1 and -1
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38. New whole
Original whole +/- amount of change
product
irrational numbers
odd number
39. Number divisible by 9
Value occurring most frequently
Sum of digits divisible by 9
Probability for each event then multiply individual probabilities together
Greater spread in values
40. Add up the digits; if the sum is a multiple of 3 the number is divisible by 3
Probability for each event then multiply individual probabilities together
equation
divisibility by 3 rule
Number w/o signs
41. Numbers that are easy to compute mentally - E.g. 34 / 5 is close to 35 / 5
compatible numbers
irrational numbers
digit
expression
42. A number written in expanded form with the place values written in exponential form - E.g. 2432=2000+400+30+2
odd number
least
Number of desired outcomes/number of total possible outcomes
expanded form using exponents
43. A set of operators - numbers - variables and grouping symbols; no equal sign
exponents
factor
expression
Last digit 0 or 5
44. Not identical or equivalent to
denominator
perfect square
not equal
compute
45. The expression of a number as a product of prime factors; use a factor tree!
digit
Greater spread in values
prime factorization
Divide by 100%
46. 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
value
simplify
evaluate
47. Answer to a division problem
Sum of values/number of values
quotient
greatest common factor
even
48. Percent decrease
(Amount of decrease/original whole) x100%
Invert second term - then multiply
(Amount of increase/original whole) x100%
identity property
49. odd + odd
even
compute
Divide by 100%
greatest common factor
50. To drop a percent
composite number
greatest
(Amount of increase/original whole) x100%
Divide by 100%