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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. The value of a digit based on its position within a number - e.g. 2 -432 The position of the numbers
mixed number
equation
place value
greatest
2. odd + odd
even
inverse property
least
percent
3. Dividing fractions
even
common denominator
Invert second term - then multiply
compute
4. Properties of 0
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5. Percent decrease
Total A/total B
(Amount of decrease/original whole) x100%
Last digit divisible by 2
perfect square
6. Add up the digits; if the sum is a multiple of 3 the number is divisible by 3
distributive property
Number w/o signs
divisibility by 3 rule
Last two digits divisible by 4
7. Any of the symbols used to write numbers (0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9)
digit
Sum of digits divisible by 3
Number w/o signs
whole number
8. 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?
Sum of digits divisible by 9
common denominator
even
denominator
9. When a number is larger than the other number. Example 65 > 56
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 of decimal places is total number of decimals places in factors multiplied
greater than
inverse property
10. Average value
less than
divisibility by 3 rule
range
Sum of values/number of values
11. Number divisible by 3
decimal
Sum of digits divisible by 3
repeating decimals
equal
12. Adding/subtracting fractions
greatest
odd number
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
LCM is LCD
13. A fraction out of 100 - %
percent
exponents
Drop percent - move decimal point two place to left
constants
14. A number made up of a whole number and a fraction
mixed number
number line
composite number
Probability for each event then multiply individual probabilities together
15. A number with more than two factors
composite number
identity property
Multiply by 100%
Number of desired outcomes/number of total possible outcomes
16. Dividing decimals
Last two digits divisible by 4
Last digit divisible by 2
equivalent
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
17. A comparison of 2 numbers; one form is a fraction
simplify
(Amount of decrease/original whole) x100%
greatest
ratio
18. Properties of numbers btw -1 and 1
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19. The expression of a number as a product of prime factors; use a factor tree!
Divisible by 2 and 3
prime factorization
Divide by 100%
place value
20. A set of operators - numbers - variables and grouping symbols; no equal sign
expression
variables
odd
compatible numbers
21. To drop a percent
Divide by 100%
Divide out largest common factor
product
irrational numbers
22. 8x8=64 What is 64?
divisibility by 3 rule
product
perfect square
square number
23. To find a number that is close to an exact answer - E.g. 23+24 is around 50
estimate
Add zeros to decimals until all decimals have same number of digits
Number w/o signs
mixed number
24. Natural Numbers - Whole Numbers - Integers - Rational Numbers
rational numbers
equivalent
estimate
commutative property
25. Number divisible by 2
Part
sum
expanded form using exponents
Last digit divisible by 2
26. The smallest number in a group of numbers
inverse property
fraction
least
Total A/total B
27. Reciprocal of number
even number
Original whole +/- amount of change
rational numbers
1 dividing by number
28. Number divisible by 9
least common multiple
Line up decimal points
Sum of digits divisible by 9
difference
29. A number that is multiplied by another number to find a producr
mixed number
factor
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
not equal
30. A number with only two factors - one and itself - E.g. 3 -7 -11 -13 -17 -19...
equation
prime number
Reduce diagonally/vertically then multiply numerators and denominators
Sum of digits divisible by 9
31. A value that does not change; any number
Last digit 0 or 5
variables
Divide by 100%
constants
32. A number that results from multiplying a factor by itself
equation
Sum of digits divisible by 3
Invert second term - then multiply
square number
33. 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
value
inverse property
difference
identity property
34. 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)
(Amount of decrease/original whole) x100%
associative property
Drop percent - move decimal point two place to left
Value occurring most frequently
35. Average A per B
denominator
place value
root numbers
Total A/total B
36. Multiple-event probability
perfect square
Probability for each event then multiply individual probabilities together
number line
inverse property
37. Number divisible by 5
Value occurring most frequently
common denominator
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
Last digit 0 or 5
38. New whole
LCM is LCD
commutative property
Original whole +/- amount of change
evaluate
39. An equation showing 2 ratios are equal
percent
digit
terminating decimals
proportion
40. Numbers that are easy to compute mentally - E.g. 34 / 5 is close to 35 / 5
greater than
Reduce diagonally/vertically then multiply numerators and denominators
compatible numbers
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
41. How much a number is worth
Sum of digits divisible by 3
repeating decimals
Probability for each event then multiply individual probabilities together
value
42. Multiplying fractions
Reduce diagonally/vertically then multiply numerators and denominators
Sum of digits divisible by 3
number line
quotient
43. Standard deviation: greater if...
Greater spread in values
identity property
equivalent
greatest common factor
44. Rational numbers that expressed in decimal format that have fixed number of digits. 1.5 etc.
repeating decimals
terminating decimals
difference
identity property
45. Properties of 1 and -1
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46. Two factors together that are multiplied to equal a larger number.
variables
factor pair
associative property
Divide by 100%
47. Adding/subtracting decimals
variables
factor pair
expression
Line up decimal points
48. Number divisible by 6
difference
Middle value
Divisible by 2 and 3
distributive property
49. Number divisible by 4
value
improper fraction
least common multiple
Last two digits divisible by 4
50. To perform a calculation - E.g. 2+2=4
least common multiple
irrational numbers
compute
divisibility by 3 rule
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