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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. Adding/subtracting decimals
Reduce diagonally/vertically then multiply numerators and denominators
inverse property
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
Line up decimal points
2. 1/5 + 1/4=4/20 +5/20 and 20 is the...
percent
sum
irrational numbers
common denominator
3. A number that results from multiplying a factor by itself
Sum of values/number of values
Value occurring most frequently
square number
composite number
4. Dividing decimals
product
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
odd
1 dividing by number
5. Reciprocal of number
Divisible by 2 and 3
1 dividing by number
prime number
sum
6. The expression of a number as a product of prime factors; use a factor tree!
common denominator
inverse property
prime factorization
least common multiple
7. Comparing decimal fractions
Add zeros to decimals until all decimals have same number of digits
identity property
Last digit divisible by 2
equation
8. Able to be divided evenly (without a remainder)
divisible
(Amount of decrease/original whole) x100%
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
9. In 4x4=16 - what is 4?
Invert second term - then multiply
Last two digits divisible by 4
root numbers
quotient
10. Number divisible by 3
odd
Value occurring most frequently
Sum of digits divisible by 3
fraction
11. Comparing positive fractions
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
Divisible by 2 and 3
compensation
odd number
12. A whole number such as 1 - 3 - 5 and so on that cannot be evenly divisible by 2
compensation
fraction
least common multiple
odd number
13. Not identical or equivalent to
number line
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
not equal
odd number
14. Multiple-event probability
rational numbers
Probability for each event then multiply individual probabilities together
Last digit 0 or 5
equal
15. Answer to a multiplication problem
estimate
perfect square
irrational numbers
product
16. 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
commutative property
mixed number
Divide by 100%
identity property
17. A comparison of 2 numbers; one form is a fraction
distributive property
ratio
even
Sum of digits divisible by 3
18. Properties of 1 and -1
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19. An equation showing 2 ratios are equal
proportion
terminating decimals
Part
divisible
20. Median
constants
Drop percent - move decimal point two place to left
product
Middle value
21. Probability
even number
Add zeros to decimals until all decimals have same number of digits
Number of desired outcomes/number of total possible outcomes
associative property
22. Be identical or equivalent to
Divisible by 2 and 3
distributive property
equal
improper fraction
23. A fraction out of 100 - %
not equal
terminating decimals
percent
Last digit divisible by 2
24. The answer to a multiplication problem
irrational numbers
Total A/total B
improper fraction
product
25. odd + even
odd
ratio
percent
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
26. Two numbers or expressions that mean the same thing - E.g. 2/3=4/6
identity property
value
equivalent
Middle value
27. Rational numbers that expressed in decimal format that have fixed number of digits. 1.5 etc.
Add zeros to decimals until all decimals have same number of digits
even
terminating decimals
repeating decimals
28. A shortcut for writing repeated multiplication
product
expanded form using exponents
associative property
exponents
29. The smallest number in a group of numbers
Probability for each event then multiply individual probabilities together
evaluate
least
simplify
30. Average A per B
evaluate
Number w/o signs
Original whole +/- amount of change
Total A/total B
31. To find the answer for; solve
expanded form using exponents
repeating decimals
evaluate
Greater spread in values
32. To drop a percent
odd
Multiply by 100%
Divide by 100%
least
33. A number with one or more digits to the right of the decimal point - E.g. .33
Divide by 100%
decimal
inverse property
less than
34. 8x8=64 What is 64?
Add zeros to decimals until all decimals have same number of digits
greater than
Value occurring most frequently
perfect square
35. A fraction whose numerator is greater than its denominator
odd number
greatest common factor
range
improper fraction
36. 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?
divisible
constants
Multiply by 100%
numerator
37. Number divisible by 4
estimate
Last two digits divisible by 4
Drop percent - move decimal point two place to left
inverse property
38. Percent x whole
even
Part
Divisible by 2 and 3
Middle value
39. A value that does not change; any number
less than
constants
greatest
Reduce diagonally/vertically then multiply numerators and denominators
40. A number with only two factors - one and itself - E.g. 3 -7 -11 -13 -17 -19...
percent
prime number
equation
square number
41. Two expressions that are set equal to each other; a number sentence with an equal sign
equation
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
expression
Add zeros to decimals until all decimals have same number of digits
42. A number that is multiplied by another number to find a producr
factor
Sum of digits divisible by 3
divisibility by 3 rule
commutative property
43. Percent decrease
expanded form using exponents
(Amount of decrease/original whole) x100%
quotient
even
44. 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.
Invert second term - then multiply
odd number
number line
compensation
45. Mode
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
Value occurring most frequently
sum
order of operations
46. Properties of numbers btw -1 and 1
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47. 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
sum
difference
commutative property
48. The answer to a subtraction problem
difference
Number of desired outcomes/number of total possible outcomes
Middle value
rational numbers
49. Adding/subtracting fractions
LCM is LCD
ratio
composite number
simplify
50. To perform a calculation - E.g. 2+2=4
compute
evaluate
perfect square
odd