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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. Two expressions that are set equal to each other; a number sentence with an equal sign
Last digit divisible by 2
equation
Add zeros to decimals until all decimals have same number of digits
difference
2. Number divisible by 4
identity property
Last digit 0 or 5
Last two digits divisible by 4
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
3. Dividing fractions
decimal
1 dividing by number
commutative property
Invert second term - then multiply
4. Numbers that are easy to compute mentally - E.g. 34 / 5 is close to 35 / 5
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
compute
proportion
compatible numbers
5. Average A per B
value
Probability for each event then multiply individual probabilities together
range
Total A/total B
6. Properties of numbers btw -1 and 1
7. To make a percent
equation
compensation
Number of desired outcomes/number of total possible outcomes
Multiply by 100%
8. To perform a calculation - E.g. 2+2=4
compute
Invert second term - then multiply
Number of desired outcomes/number of total possible outcomes
fraction
9. Rational numbers in decimal form that have a block of on or more digits that repeat continuously
equation
even
Sum of digits divisible by 3
repeating decimals
10. 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)
less than
compensation
associative property
irrational numbers
11. The answer to a multiplication problem
product
square number
factor
constants
12. Number divisible by 3
improper fraction
Sum of digits divisible by 3
compatible numbers
decimal
13. Two numbers or expressions that mean the same thing - E.g. 2/3=4/6
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
Last two digits divisible by 4
equivalent
least common multiple
14. A number that results from multiplying a factor by itself
compatible numbers
(Amount of decrease/original whole) x100%
square number
divisible
15. The answer to an addition problem
Total A/total B
sum
irrational numbers
estimate
16. A number with only two factors - one and itself - E.g. 3 -7 -11 -13 -17 -19...
Divide out largest common factor
order of operations
odd number
prime number
17. 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
quotient
identity property
equal
18. Average value
Sum of values/number of values
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
commutative property
greatest
19. A number made up of a whole number and a fraction
Sum of digits divisible by 3
Divide by 100%
mixed number
factor pair
20. To find the answer for; solve
composite number
least
Divide out largest common factor
evaluate
21. Number divisible by 6
Divisible by 2 and 3
least
fraction
Number w/o signs
22. A letter that represents a value that may change
distributive property
ratio
variables
Greater spread in values
23. Add up the digits; if the sum is a multiple of 3 the number is divisible by 3
divisibility by 3 rule
order of operations
Sum of digits divisible by 9
Number w/o signs
24. Multiplying decimals
prime number
Number of decimal places is total number of decimals places in factors multiplied
numerator
less than
25. A set of operators - numbers - variables and grouping symbols; no equal sign
expression
associative property
common denominator
decimal
26. Rational numbers that expressed in decimal format that have fixed number of digits. 1.5 etc.
divisible
Last digit divisible by 2
terminating decimals
improper fraction
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
greatest
square number
identity property
root numbers
28. Multiple-event probability
ratio
order of operations
Sum of digits divisible by 3
Probability for each event then multiply individual probabilities together
29. A whole number such as 1 - 3 - 5 and so on that cannot be evenly divisible by 2
Number of desired outcomes/number of total possible outcomes
perfect square
odd number
exponents
30. Adding/subtracting decimals
least common multiple
terminating decimals
Part
Line up decimal points
31. In 4x4=16 - what is 4?
digit
root numbers
equivalent
least
32. Absolute value of number
Add zeros to decimals until all decimals have same number of digits
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
order of operations
Number w/o signs
33. Median
Middle value
rational numbers
numerator
proportion
34. 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?
denominator
place value
fraction
product
35. The value of a digit based on its position within a number - e.g. 2 -432 The position of the numbers
Line up decimal points
factor pair
(Amount of decrease/original whole) x100%
place value
36. An equation showing 2 ratios are equal
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
root numbers
proportion
irrational numbers
37. Mode
ratio
greatest
Value occurring most frequently
Reduce diagonally/vertically then multiply numerators and denominators
38. 1/5 + 1/4=4/20 +5/20 and 20 is the...
common denominator
Sum of values/number of values
composite number
rational numbers
39. Number divisible by 9
Drop percent - move decimal point two place to left
Sum of digits divisible by 9
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
greatest
40. To drop a percent
Divide by 100%
Drop percent - move decimal point two place to left
product
Number of decimal places is total number of decimals places in factors multiplied
41. How much a number is worth
value
less than
quotient
Last digit 0 or 5
42. Answer to a division problem
(Amount of decrease/original whole) x100%
least common multiple
quotient
Divisible by 2 and 3
43. 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
irrational numbers
Total A/total B
divisibility by 3 rule
compensation
44. Dividing decimals
variables
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
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
identity property
45. To place a fraction in lowest terms
Sum of digits divisible by 3
(Amount of increase/original whole) x100%
simplify
common denominator
46. Percent increase
ratio
compensation
divisibility by 3 rule
(Amount of increase/original whole) x100%
47. The expression of a number as a product of prime factors; use a factor tree!
simplify
prime factorization
exponents
prime number
48. Probability
Number of desired outcomes/number of total possible outcomes
square number
value
divisible
49. A fraction out of 100 - %
constants
percent
quotient
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
50. 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
compensation
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
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
inverse property