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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. The expression of a number as a product of prime factors; use a factor tree!
Sum of digits divisible by 3
perfect square
prime factorization
whole number
2. To find the answer for; solve
common denominator
numerator
evaluate
Last digit divisible by 2
3. Comparing positive fractions
least common multiple
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
place value
product
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
Total A/total B
improper fraction
identity property
greatest
5. To place a fraction in lowest terms
simplify
least common multiple
digit
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
6. Multiple-event probability
Probability for each event then multiply individual probabilities together
fraction
Sum of digits divisible by 3
Total A/total B
7. Answer to a division problem
repeating decimals
Add zeros to decimals until all decimals have same number of digits
quotient
Number w/o signs
8. Number divisible by 4
identity property
Last two digits divisible by 4
divisible
Original whole +/- amount of change
9. 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)
Sum of values/number of values
Divisible by 2 and 3
commutative property
Sum of digits divisible by 9
10. PEMDAS - Parentheses - Exponents - Multiplication & Division (L to R) - Addition & Subtraction (L to R)
repeating decimals
order of operations
Last digit divisible by 2
decimal
11. A number that results from multiplying a factor by itself
value
constants
odd
square number
12. 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)
irrational numbers
numerator
Reduce diagonally/vertically then multiply numerators and denominators
associative property
13. Percent decrease
mixed number
Total A/total B
even number
(Amount of decrease/original whole) x100%
14. Absolute value of number
Total A/total B
Number w/o signs
variables
quotient
15. Able to be divided evenly (without a remainder)
Number of decimal places is total number of decimals places in factors multiplied
range
product
divisible
16. To drop a percent
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%
quotient
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
17. A number made up of a whole number and a fraction
decimal
composite number
difference
mixed number
18. 1/5 + 1/4=4/20 +5/20 and 20 is the...
common denominator
least
(Amount of decrease/original whole) x100%
even number
19. Multiplying decimals
Number of decimal places is total number of decimals places in factors multiplied
Number of desired outcomes/number of total possible outcomes
irrational numbers
Greater spread in values
20. Adding/subtracting decimals
sum
range
Line up decimal points
Add zeros to decimals until all decimals have same number of digits
21. Two factors together that are multiplied to equal a larger number.
decimal
Reduce diagonally/vertically then multiply numerators and denominators
factor pair
divisibility by 3 rule
22. A shortcut for writing repeated multiplication
square number
range
Line up decimal points
exponents
23. Number divisible by 9
root numbers
compatible numbers
Sum of digits divisible by 9
Invert second term - then multiply
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
prime number
fraction
ratio
digit
25. Any whole number that ends with 0 - 2 - 4 - 6 - or 8 - any whole number that can be divided by 2
odd
even number
associative property
Sum of digits divisible by 3
26. Median
factor pair
variables
Middle value
Total A/total B
27. Comparing decimal fractions
Sum of values/number of values
Add zeros to decimals until all decimals have same number of digits
Line up decimal points
factor
28. The answer to a subtraction problem
expanded form using exponents
greatest common factor
difference
Sum of values/number of values
29. Rational numbers in decimal form that have a block of on or more digits that repeat continuously
not equal
rational numbers
less than
repeating decimals
30. Mode
Divisible by 2 and 3
root numbers
Middle value
Value occurring most frequently
31. Probability
prime number
number line
not equal
Number of desired outcomes/number of total possible outcomes
32. Add up the digits; if the sum is a multiple of 3 the number is divisible by 3
improper fraction
least
Sum of digits divisible by 9
divisibility by 3 rule
33. Adding/subtracting fractions
identity property
Multiply by 100%
LCM is LCD
Greater spread in values
34. 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
Sum of digits divisible by 3
irrational numbers
Drop percent - move decimal point two place to left
factor
35. Dividing decimals
evaluate
place value
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
product
36. The answer to an addition problem
sum
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
Add zeros to decimals until all decimals have same number of digits
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
37. An equation showing 2 ratios are equal
associative property
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
proportion
improper fraction
38. 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?
quotient
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
Divisible by 2 and 3
denominator
39. To change a percent to a decimal
Number of desired outcomes/number of total possible outcomes
expanded form using exponents
Last digit divisible by 2
Drop percent - move decimal point two place to left
40. Not identical or equivalent to
Middle value
proportion
Probability for each event then multiply individual probabilities together
not equal
41. The answer to a multiplication problem
Part
Number of decimal places is total number of decimals places in factors multiplied
place value
product
42. A number with one or more digits to the right of the decimal point - E.g. .33
place value
compensation
equation
decimal
43. Average A per B
Total A/total B
digit
compatible numbers
square number
44. Number divisible by 6
Divisible by 2 and 3
least
variables
equation
45. A letter that represents a value that may change
variables
product
divisibility by 3 rule
common denominator
46. How much a number is worth
Reduce diagonally/vertically then multiply numerators and denominators
value
fraction
difference
47. A line for representing and graphing numbers. Each point on the line corresponds to a number.
Multiply by 100%
quotient
number line
Sum of digits divisible by 3
48. Percent x whole
Part
identity property
digit
equivalent
49. The largest number in a group of numbers
Sum of digits divisible by 9
greatest
composite number
factor
50. The smallest number that is a multiple of both numbers. (the LCM of 15 and 6 is 30)
least common multiple
LCM is LCD
equivalent
place value