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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. Reciprocal of number
expanded form using exponents
1 dividing by number
simplify
Sum of values/number of values
2. Adding/subtracting decimals
distributive property
(Amount of increase/original whole) x100%
quotient
Line up decimal points
3. Able to be divided evenly (without a remainder)
Greater spread in values
divisible
proportion
exponents
4. Percent decrease
(Amount of decrease/original whole) x100%
prime number
rational numbers
factor pair
5. Number divisible by 3
Last digit divisible by 2
Sum of digits divisible by 3
denominator
rational numbers
6. Average A per B
Invert second term - then multiply
Reduce diagonally/vertically then multiply numerators and denominators
greatest
Total A/total B
7. Multiplying decimals
rational numbers
Number of decimal places is total number of decimals places in factors multiplied
less than
Sum of values/number of values
8. A fraction whose numerator is greater than its denominator
odd number
improper fraction
Divisible by 2 and 3
LCM is LCD
9. Number divisible by 4
least
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
sum
Last two digits divisible by 4
10. Properties of 0
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11. A number made up of a whole number and a fraction
factor pair
mixed number
irrational numbers
least common multiple
12. Simplifying complex fractions: two methods
Last digit divisible by 2
product
Reduce diagonally/vertically then multiply numerators and denominators
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
13. To drop a percent
numerator
commutative property
Divide by 100%
Last digit 0 or 5
14. The largest number in a group of numbers
greatest
Middle value
difference
estimate
15. Two expressions that are set equal to each other; a number sentence with an equal sign
product
equation
square number
Add zeros to decimals until all decimals have same number of digits
16. odd + odd
square number
even
Reduce diagonally/vertically then multiply numerators and denominators
equivalent
17. Rational numbers in decimal form that have a block of on or more digits that repeat continuously
repeating decimals
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
Sum of digits divisible by 9
compatible numbers
18. 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)=
compatible numbers
Total A/total B
distributive property
factor
19. A number with only two factors - one and itself - E.g. 3 -7 -11 -13 -17 -19...
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
factor pair
perfect square
prime number
20. Reducing fractions
Divide out largest common factor
Multiply by 100%
common denominator
product
21. A number that is multiplied by another number to find a producr
factor
factor pair
equivalent
prime number
22. A number written in expanded form with the place values written in exponential form - E.g. 2432=2000+400+30+2
expanded form using exponents
fraction
identity property
Divisible by 2 and 3
23. Absolute value of number
Number w/o signs
equivalent
odd
greater than
24. Number divisible by 5
rational numbers
identity property
Last digit 0 or 5
Original whole +/- amount of change
25. PEMDAS - Parentheses - Exponents - Multiplication & Division (L to R) - Addition & Subtraction (L to R)
order of operations
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
value
terminating decimals
26. To change a percent to a decimal
divisibility by 3 rule
equal
Drop percent - move decimal point two place to left
rational numbers
27. 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.
square number
Part
compensation
numerator
28. The greatest whole number that is a factor of two or more nonzero whole numbers
prime number
Probability for each event then multiply individual probabilities together
greatest common factor
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
29. Multiplying fractions
ratio
Reduce diagonally/vertically then multiply numerators and denominators
constants
range
30. New whole
difference
divisibility by 3 rule
proportion
Original whole +/- amount of change
31. Natural Numbers - Whole Numbers - Integers - Rational Numbers
identity property
rational numbers
number line
Sum of digits divisible by 9
32. Two numbers or expressions that mean the same thing - E.g. 2/3=4/6
denominator
Number of decimal places is total number of decimals places in factors multiplied
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
equivalent
33. 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)
numerator
Line up decimal points
place value
commutative property
34. 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?
(Amount of decrease/original whole) x100%
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
odd
numerator
35. The answer to a multiplication problem
improper fraction
product
quotient
least
36. Dividing decimals
root numbers
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
estimate
even
37. 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
simplify
digit
place value
38. The difference between the greatest and the least numbers in a set of data.
Total A/total B
quotient
proportion
range
39. Numbers that are easy to compute mentally - E.g. 34 / 5 is close to 35 / 5
compatible numbers
Probability for each event then multiply individual probabilities together
value
Last digit divisible by 2
40. A line for representing and graphing numbers. Each point on the line corresponds to a number.
digit
number line
Last digit divisible by 2
range
41. Median
place value
Middle value
Divide by 100%
least common multiple
42. 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
Number w/o signs
fraction
identity property
rational numbers
43. 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)
exponents
Sum of values/number of values
associative property
common denominator
44. A number without fractions; an integer- E.g. 0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9...
greater than
whole number
factor pair
improper fraction
45. 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
evaluate
irrational numbers
prime factorization
factor
46. Multiple-event probability
distributive property
Probability for each event then multiply individual probabilities together
divisibility by 3 rule
Divisible by 2 and 3
47. To perform a calculation - E.g. 2+2=4
compute
(Amount of decrease/original whole) x100%
distributive property
greatest
48. Percent x whole
fraction
Part
(Amount of increase/original whole) x100%
factor
49. To find the answer for; solve
evaluate
associative property
Add zeros to decimals until all decimals have same number of digits
Last digit divisible by 2
50. Properties of numbers btw -1 and 1
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