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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. In 4x4=16 - what is 4?
Number of desired outcomes/number of total possible outcomes
Add zeros to decimals until all decimals have same number of digits
simplify
root numbers
2. A number with one or more digits to the right of the decimal point - E.g. .33
variables
decimal
distributive property
least common multiple
3. A number that results from multiplying a factor by itself
square number
compute
Sum of digits divisible by 9
whole number
4. A shortcut for writing repeated multiplication
order of operations
exponents
Multiply by 100%
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
5. A fraction out of 100 - %
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
even number
percent
greatest common factor
6. The answer to a multiplication problem
product
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
least
distributive property
7. Percent x whole
digit
distributive property
Last two digits divisible by 4
Part
8. Mode
product
difference
Value occurring most frequently
perfect square
9. Reciprocal of number
odd number
repeating decimals
Total A/total B
1 dividing by number
10. To make a percent
Multiply by 100%
percent
Greater spread in values
divisible
11. PEMDAS - Parentheses - Exponents - Multiplication & Division (L to R) - Addition & Subtraction (L to R)
compensation
digit
order of operations
Divide out largest common factor
12. Relationship in which a number is smaller than another
equal
Reduce diagonally/vertically then multiply numerators and denominators
less than
odd number
13. Number divisible by 4
quotient
even number
expression
Last two digits divisible by 4
14. Natural Numbers - Whole Numbers - Integers - Rational Numbers
denominator
place value
rational numbers
identity property
15. Two factors together that are multiplied to equal a larger number.
factor pair
place value
even
quotient
16. Able to be divided evenly (without a remainder)
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
simplify
divisible
compatible numbers
17. Percent decrease
(Amount of decrease/original whole) x100%
factor
divisible
expression
18. 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
odd number
compensation
irrational numbers
numerator
19. Number divisible by 9
Greater spread in values
Reduce diagonally/vertically then multiply numerators and denominators
Sum of digits divisible by 9
Last two digits divisible by 4
20. Multiplying fractions
common denominator
Total A/total B
Reduce diagonally/vertically then multiply numerators and denominators
rational numbers
21. Properties of 1 and -1
22. odd + odd
odd number
Drop percent - move decimal point two place to left
Divisible by 2 and 3
even
23. The smallest number that is a multiple of both numbers. (the LCM of 15 and 6 is 30)
evaluate
Greater spread in values
least common multiple
compute
24. A value that does not change; any number
difference
odd
constants
percent
25. 8x8=64 What is 64?
prime factorization
Total A/total B
perfect square
product
26. Average A per B
Total A/total B
Reduce diagonally/vertically then multiply numerators and denominators
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
rational numbers
27. To find a number that is close to an exact answer - E.g. 23+24 is around 50
estimate
order of operations
variables
prime factorization
28. 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
exponents
identity property
compute
29. How much a number is worth
Divide out largest common factor
less than
value
irrational numbers
30. A number without fractions; an integer- E.g. 0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9...
whole number
associative property
ratio
irrational numbers
31. Absolute value of number
variables
Number w/o signs
equivalent
Sum of digits divisible by 3
32. Rational numbers that expressed in decimal format that have fixed number of digits. 1.5 etc.
Last digit 0 or 5
terminating decimals
sum
distributive property
33. The expression of a number as a product of prime factors; use a factor tree!
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
prime factorization
numerator
Divide by 100%
34. 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
Original whole +/- amount of change
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
35. Standard deviation: greater if...
Value occurring most frequently
Greater spread in values
Add zeros to decimals until all decimals have same number of digits
terminating decimals
36. Adding/subtracting decimals
product
Line up decimal points
square number
Number of decimal places is total number of decimals places in factors multiplied
37. Number divisible by 5
ratio
Last digit 0 or 5
prime factorization
exponents
38. To change a percent to a decimal
digit
rational numbers
least common multiple
Drop percent - move decimal point two place to left
39. Answer to a multiplication problem
product
order of operations
Invert second term - then multiply
simplify
40. Multiplying decimals
denominator
greater than
Probability for each event then multiply individual probabilities together
Number of decimal places is total number of decimals places in factors multiplied
41. 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)
variables
composite number
number line
commutative property
42. A number that is multiplied by another number to find a producr
factor
odd number
Sum of digits divisible by 9
terminating decimals
43. The answer to an addition problem
ratio
sum
percent
Divide by 100%
44. Dividing fractions
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
Invert second term - then multiply
prime number
value
45. The greatest whole number that is a factor of two or more nonzero whole numbers
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
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
greatest common factor
Total A/total B
46. 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
equal
inverse property
improper fraction
ratio
47. A number that represents a part of a whole or a group; also means 'divided by' - E.g. 1/2 -3/4.5/6
Add zeros to decimals until all decimals have same number of digits
fraction
percent
Invert second term - then multiply
48. Any of the symbols used to write numbers (0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9)
terminating decimals
digit
even
LCM is LCD
49. To find the answer for; solve
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
evaluate
Total A/total B
percent
50. A whole number such as 1 - 3 - 5 and so on that cannot be evenly divisible by 2
improper fraction
(Amount of decrease/original whole) x100%
even number
odd number