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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. PEMDAS - Parentheses - Exponents - Multiplication & Division (L to R) - Addition & Subtraction (L to R)
order of operations
Number of decimal places is total number of decimals places in factors multiplied
quotient
estimate
2. Answer to a multiplication problem
1 dividing by number
Add zeros to decimals until all decimals have same number of digits
product
Number w/o signs
3. Percent increase
repeating decimals
not equal
Invert second term - then multiply
(Amount of increase/original whole) x100%
4. A number made up of a whole number and a fraction
prime factorization
constants
Invert second term - then multiply
mixed number
5. Answer to a division problem
less than
greater than
quotient
compatible numbers
6. A fraction whose numerator is greater than its denominator
Original whole +/- amount of change
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
Part
improper fraction
7. The largest number in a group of numbers
mixed number
least
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
greatest
8. Not identical or equivalent to
decimal
Last digit divisible by 2
not equal
least common multiple
9. Comparing positive fractions
greater than
Last two digits divisible by 4
perfect square
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
10. Standard deviation: greater if...
proportion
Number of desired outcomes/number of total possible outcomes
Greater spread in values
factor
11. A value that does not change; any number
repeating decimals
constants
Sum of values/number of values
equation
12. Number divisible by 6
whole number
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
sum
Divisible by 2 and 3
13. Simplifying complex fractions: two methods
Original whole +/- amount of change
equation
even number
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
14. Probability
rational numbers
mixed number
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 desired outcomes/number of total possible outcomes
15. The expression of a number as a product of prime factors; use a factor tree!
Middle value
prime factorization
not equal
Last digit divisible by 2
16. A number with more than two factors
rational numbers
compatible numbers
Last digit 0 or 5
composite number
17. A letter that represents a value that may change
product
Sum of digits divisible by 9
variables
greatest
18. Be identical or equivalent to
fraction
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
equal
root numbers
19. The smallest number in a group of numbers
least
Total A/total B
constants
Number of decimal places is total number of decimals places in factors multiplied
20. Absolute value of number
greater than
divisible
Number w/o signs
perfect square
21. Properties of 1 and -1
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22. The answer to a subtraction problem
equal
root numbers
(Amount of increase/original whole) x100%
difference
23. Dividing decimals
number line
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
least
Probability for each event then multiply individual probabilities together
24. Two numbers or expressions that mean the same thing - E.g. 2/3=4/6
factor pair
equivalent
divisible
exponents
25. 8x8=64 What is 64?
percent
perfect square
Sum of values/number of values
Divide out largest common factor
26. When a number is larger than the other number. Example 65 > 56
greater than
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
prime factorization
irrational numbers
27. 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
identity property
expression
proportion
ratio
28. Percent decrease
compatible numbers
improper fraction
composite number
(Amount of decrease/original whole) x100%
29. Adding/subtracting fractions
LCM is LCD
estimate
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
compensation
30. Properties of numbers btw -1 and 1
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31. 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)=
Greater spread in values
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 property
quotient
32. The answer to a multiplication problem
expanded form using exponents
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
product
irrational numbers
33. A fraction out of 100 - %
percent
equivalent
improper fraction
LCM is LCD
34. Properties of 0
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35. Number divisible by 9
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
odd
order of operations
Sum of digits divisible by 9
36. 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.
equation
Middle value
compensation
prime number
37. Number divisible by 5
digit
Last digit 0 or 5
proportion
less than
38. An equation showing 2 ratios are equal
compatible numbers
proportion
number line
Sum of digits divisible by 9
39. Numbers that are easy to compute mentally - E.g. 34 / 5 is close to 35 / 5
compatible numbers
percent
Probability for each event then multiply individual probabilities together
prime number
40. odd + odd
difference
product
even
decimal
41. Median
Middle value
less than
LCM is LCD
range
42. To place a fraction in lowest terms
Sum of digits divisible by 9
simplify
Sum of digits divisible by 3
Multiply by 100%
43. Multiple-event probability
Drop percent - move decimal point two place to left
exponents
evaluate
Probability for each event then multiply individual probabilities together
44. A line for representing and graphing numbers. Each point on the line corresponds to a number.
expression
evaluate
number line
place value
45. The value of a digit based on its position within a number - e.g. 2 -432 The position of the numbers
least common multiple
odd number
greatest common factor
place value
46. A set of operators - numbers - variables and grouping symbols; no equal sign
expression
decimal
Number w/o signs
ratio
47. New whole
expanded form using exponents
common denominator
Probability for each event then multiply individual probabilities together
Original whole +/- amount of change
48. To make a percent
less than
rational numbers
Multiply by 100%
equivalent
49. Number divisible by 3
Value occurring most frequently
perfect square
root numbers
Sum of digits divisible by 3
50. A number that results from multiplying a factor by itself
root numbers
square number
whole number
digit