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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. A line for representing and graphing numbers. Each point on the line corresponds to a number.
numerator
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
number line
Original whole +/- amount of change
2. Reciprocal of number
(Amount of increase/original whole) x100%
1 dividing by number
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
3. The value of a digit based on its position within a number - e.g. 2 -432 The position of the numbers
Add zeros to decimals until all decimals have same number of digits
place value
product
Drop percent - move decimal point two place to left
4. 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?
compensation
divisible
denominator
inverse property
5. The property which allows you to add a number's opposite to it and always get 0 - The relationship of addition to subtraction or multiplication to division
odd number
product
inverse property
product
6. Relationship in which a number is smaller than another
even number
LCM is LCD
Part
less than
7. Adding/subtracting fractions
greater than
divisible
Divide out largest common factor
LCM is LCD
8. Absolute value of number
Number w/o signs
numerator
expanded form using exponents
Last two digits divisible by 4
9. The answer to a multiplication problem
less than
not equal
number line
product
10. Multiplying fractions
Reduce diagonally/vertically then multiply numerators and denominators
less than
Divisible by 2 and 3
LCM is LCD
11. Answer to a division problem
Sum of digits divisible by 9
quotient
Last digit divisible by 2
equivalent
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)
associative property
common denominator
denominator
Middle value
13. 1/5 + 1/4=4/20 +5/20 and 20 is the...
Sum of digits divisible by 3
common denominator
Last digit divisible by 2
Last two digits divisible by 4
14. Numbers that are easy to compute mentally - E.g. 34 / 5 is close to 35 / 5
Greater spread in values
compatible numbers
equal
decimal
15. A whole number such as 1 - 3 - 5 and so on that cannot be evenly divisible by 2
decimal
Multiply by 100%
odd number
identity property
16. A number that represents a part of a whole or a group; also means 'divided by' - E.g. 1/2 -3/4.5/6
value
place value
fraction
mixed number
17. Simplifying complex fractions: two methods
factor
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
Greater spread in values
root numbers
18. Adding/subtracting decimals
simplify
Line up decimal points
(Amount of increase/original whole) x100%
perfect square
19. Properties of numbers btw -1 and 1
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20. Number divisible by 5
Last digit 0 or 5
Line up decimal points
odd
improper fraction
21. Two expressions that are set equal to each other; a number sentence with an equal sign
Divisible by 2 and 3
range
equation
Add zeros to decimals until all decimals have same number of digits
22. Any of the symbols used to write numbers (0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9)
digit
even
mixed number
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
23. To change a percent to a decimal
terminating decimals
least common multiple
numerator
Drop percent - move decimal point two place to left
24. A fraction whose numerator is greater than its denominator
improper fraction
proportion
Line up decimal points
number line
25. 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.
compensation
Probability for each event then multiply individual probabilities together
square number
commutative property
26. A number made up of a whole number and a fraction
mixed number
Value occurring most frequently
greatest
Divide by 100%
27. 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)=
decimal
factor
equation
distributive property
28. Average A per B
place value
Invert second term - then multiply
Total A/total B
whole number
29. Dividing fractions
composite number
irrational numbers
least
Invert second term - then multiply
30. Two factors together that are multiplied to equal a larger number.
factor pair
terminating decimals
inverse property
ratio
31. A number without fractions; an integer- E.g. 0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9...
greatest
mixed number
whole number
1 dividing by number
32. To find a number that is close to an exact answer - E.g. 23+24 is around 50
Multiply by 100%
order of operations
estimate
Last digit divisible by 2
33. Number divisible by 9
equivalent
Sum of digits divisible by 9
LCM is LCD
greater than
34. A number with more than two factors
order of operations
prime number
variables
composite number
35. Number divisible by 2
equation
Drop percent - move decimal point two place to left
Last digit divisible by 2
Original whole +/- amount of change
36. New whole
(Amount of increase/original whole) x100%
Original whole +/- amount of change
exponents
Value occurring most frequently
37. Two numbers or expressions that mean the same thing - E.g. 2/3=4/6
even number
composite number
equivalent
root numbers
38. Be identical or equivalent to
equal
least common multiple
prime number
even
39. When a number is larger than the other number. Example 65 > 56
(Amount of increase/original whole) x100%
Add zeros to decimals until all decimals have same number of digits
greater than
irrational numbers
40. A number with one or more digits to the right of the decimal point - E.g. .33
simplify
decimal
ratio
Last two digits divisible by 4
41. The answer to a subtraction problem
difference
digit
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
root numbers
42. Comparing decimal fractions
Number of decimal places is total number of decimals places in factors multiplied
composite number
number line
Add zeros to decimals until all decimals have same number of digits
43. 8x8=64 What is 64?
perfect square
even
sum
quotient
44. Rational numbers that expressed in decimal format that have fixed number of digits. 1.5 etc.
equation
terminating decimals
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
least common multiple
45. How much a number is worth
value
quotient
odd
digit
46. 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
Greater spread in values
identity property
commutative property
Add zeros to decimals until all decimals have same number of digits
47. Natural Numbers - Whole Numbers - Integers - Rational Numbers
rational numbers
terminating decimals
least common multiple
range
48. To place a fraction in lowest terms
LCM is LCD
simplify
number line
associative property
49. To perform a calculation - E.g. 2+2=4
Greater spread in values
factor pair
(Amount of decrease/original whole) x100%
compute
50. 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
even
compatible numbers
irrational numbers
whole number