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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. Natural Numbers - Whole Numbers - Integers - Rational Numbers
compute
ratio
rational numbers
Middle value
2. A number with one or more digits to the right of the decimal point - E.g. .33
equation
decimal
perfect square
LCM is LCD
3. Not identical or equivalent to
fraction
exponents
not equal
square number
4. Answer to a multiplication problem
Sum of digits divisible by 3
inverse property
product
compensation
5. Multiplying decimals
Number of decimal places is total number of decimals places in factors multiplied
Part
prime factorization
Sum of digits divisible by 9
6. odd + odd
estimate
numerator
even
Last two digits divisible by 4
7. Rational numbers that expressed in decimal format that have fixed number of digits. 1.5 etc.
less than
numerator
terminating decimals
Original whole +/- amount of change
8. A whole number such as 1 - 3 - 5 and so on that cannot be evenly divisible by 2
odd number
greatest
Last two digits divisible by 4
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
9. Numbers that are easy to compute mentally - E.g. 34 / 5 is close to 35 / 5
compatible numbers
expression
divisibility by 3 rule
1 dividing by number
10. Comparing decimal fractions
Add zeros to decimals until all decimals have same number of digits
divisible
denominator
prime number
11. To perform a calculation - E.g. 2+2=4
greater than
product
compute
proportion
12. Absolute value of number
expression
proportion
evaluate
Number w/o signs
13. Number divisible by 3
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
Sum of digits divisible by 3
prime factorization
denominator
14. Add up the digits; if the sum is a multiple of 3 the number is divisible by 3
divisibility by 3 rule
Value occurring most frequently
Multiply by 100%
factor pair
15. Multiplying fractions
composite number
Reduce diagonally/vertically then multiply numerators and denominators
sum
product
16. A line for representing and graphing numbers. Each point on the line corresponds to a number.
prime factorization
Probability for each event then multiply individual probabilities together
number line
simplify
17. 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
Sum of values/number of values
even
commutative property
18. odd + even
range
compute
1 dividing by number
odd
19. A number made up of a whole number and a fraction
mixed number
least
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
compute
20. A set of operators - numbers - variables and grouping symbols; no equal sign
Probability for each event then multiply individual probabilities together
divisibility by 3 rule
expression
Reduce diagonally/vertically then multiply numerators and denominators
21. Percent x whole
rational numbers
Part
greatest
compatible numbers
22. 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
Sum of digits divisible by 3
irrational numbers
variables
factor
23. A number that results from multiplying a factor by itself
square number
Original whole +/- amount of change
not equal
ratio
24. PEMDAS - Parentheses - Exponents - Multiplication & Division (L to R) - Addition & Subtraction (L to R)
product
order of operations
least common multiple
quotient
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.
sum
greatest common factor
compensation
commutative property
26. A fraction out of 100 - %
repeating decimals
Divide by 100%
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
percent
27. 1/5 + 1/4=4/20 +5/20 and 20 is the...
difference
common denominator
commutative property
exponents
28. To drop a percent
proportion
odd number
order of operations
Divide by 100%
29. A number with more than two factors
commutative property
composite number
compatible numbers
least common multiple
30. Reducing fractions
Divide by 100%
distributive property
associative property
Divide out largest common factor
31. Dividing decimals
Number of decimal places is total number of decimals places in factors multiplied
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
perfect square
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
32. 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
greatest common factor
mixed number
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
33. Rational numbers in decimal form that have a block of on or more digits that repeat continuously
factor pair
inverse property
compensation
repeating decimals
34. 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)
commutative property
odd
Last digit divisible by 2
estimate
35. Standard deviation: greater if...
identity property
Greater spread in values
least
Divisible by 2 and 3
36. An equation showing 2 ratios are equal
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
proportion
Value occurring most frequently
37. Any of the symbols used to write numbers (0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9)
Total A/total B
digit
number line
Divide out largest common factor
38. Number divisible by 6
sum
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
fraction
Divisible by 2 and 3
39. Number divisible by 2
odd number
Original whole +/- amount of change
Last digit divisible by 2
commutative property
40. The answer to an addition problem
sum
root numbers
distributive property
Divisible by 2 and 3
41. A number written in expanded form with the place values written in exponential form - E.g. 2432=2000+400+30+2
identity property
expanded form using exponents
root numbers
compute
42. 8x8=64 What is 64?
perfect square
exponents
Sum of digits divisible by 9
compensation
43. The answer to a multiplication problem
Total A/total B
product
expanded form using exponents
difference
44. Adding/subtracting fractions
even number
divisibility by 3 rule
LCM is LCD
order of operations
45. Two expressions that are set equal to each other; a number sentence with an equal sign
rational numbers
odd
equation
prime factorization
46. Any whole number that ends with 0 - 2 - 4 - 6 - or 8 - any whole number that can be divided by 2
Sum of digits divisible by 3
even number
Distributive law: multiply by LCM of all denominators; treat numerator/denominator separately
perfect square
47. A comparison of 2 numbers; one form is a fraction
Sum of digits divisible by 9
ratio
sum
rational numbers
48. Properties of 1 and -1
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49. In 4x4=16 - what is 4?
divisible
root numbers
Add zeros to decimals until all decimals have same number of digits
identity property
50. 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)
place value
associative property
compensation
prime factorization
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