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Number Sense Vocab

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. Number divisible by 5
Last digit 0 or 5
LCM is LCD
greatest
odd

2. odd + odd
even
composite number
digit
equivalent

3. A number with more than two factors
equation
(Amount of decrease/original whole) x100%
quotient
composite number

4. The value of a digit based on its position within a number - e.g. 2 -432 The position of the numbers
evaluate
place value
decimal
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend

5. Percent increase
irrational numbers
(Amount of increase/original whole) x100%
less than
improper fraction

6. 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?
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
least
less than
denominator

7. The difference between the greatest and the least numbers in a set of data.
range
1 dividing by number
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
rational numbers

8. Multiplying fractions
commutative property
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
Add zeros to decimals until all decimals have same number of digits
Reduce diagonally/vertically then multiply numerators and denominators

9. In 4x4=16 - what is 4?
Line up decimal points
Part
odd number
root numbers

10. Rational numbers that expressed in decimal format that have fixed number of digits. 1.5 etc.
Last two digits divisible by 4
product
digit
terminating decimals

11. Number divisible by 6
Divisible by 2 and 3
Divide out largest common factor
Original whole +/- amount of change
odd number

12. A number with one or more digits to the right of the decimal point - E.g. .33
even number
associative property
decimal
greater than

13. To perform a calculation - E.g. 2+2=4
proportion
compute
variables
Part

14. Any whole number that ends with 0 - 2 - 4 - 6 - or 8 - any whole number that can be divided by 2
irrational numbers
composite number
decimal
even number

15. 1/5 + 1/4=4/20 +5/20 and 20 is the...
common denominator
difference
Last two digits divisible by 4
(Amount of increase/original whole) x100%

16. Dividing fractions
sum
Invert second term - then multiply
prime number
identity property

17. A number that results from multiplying a factor by itself
square number
prime number
Line up decimal points
Greater spread in values

18. Properties of 1 and -1

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19. A shortcut for writing repeated multiplication
sum
exponents
prime number
terminating decimals

20. Two expressions that are set equal to each other; a number sentence with an equal sign
simplify
equation
1 dividing by number
distributive property

21. The answer to a multiplication problem
divisibility by 3 rule
product
Invert second term - then multiply
whole number

22. Rational numbers in decimal form that have a block of on or more digits that repeat continuously
not equal
repeating decimals
Sum of digits divisible by 9
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

23. Percent x whole
Part
decimal
identity property
order of operations

24. 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)
equal
commutative property
Divide out largest common factor
exponents

25. To find a number that is close to an exact answer - E.g. 23+24 is around 50
estimate
equivalent
irrational numbers
percent

26. A comparison of 2 numbers; one form is a fraction
associative property
Number of desired outcomes/number of total possible outcomes
ratio
inverse property

27. The smallest number that is a multiple of both numbers. (the LCM of 15 and 6 is 30)
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 common multiple
associative property
not equal

28. Reducing fractions
product
1 dividing by number
Part
Divide out largest common factor

29. Absolute value of number
Number w/o signs
Last digit divisible by 2
rational numbers
Reduce diagonally/vertically then multiply numerators and denominators

30. A number with only two factors - one and itself - E.g. 3 -7 -11 -13 -17 -19...
Last two digits divisible by 4
associative property
difference
prime number

31. A letter that represents a value that may change
Same numerators: fraction w/ smaller denominator has larger value; Same denominators: fraction w/ larger numerator has larger value
variables
Divide by 100%
Middle value

32. Dividing decimals
least
value
Multiply by power of 10 so divisor is integer; decimal point is above that in dividend
sum

33. Average A per B
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
Total A/total B
improper fraction

34. Comparing decimal fractions
associative property
value
Add zeros to decimals until all decimals have same number of digits
distributive property

35. When a number is larger than the other number. Example 65 > 56
numerator
greatest
greater than
fraction

36. Properties of numbers btw -1 and 1

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37. Mode
Value occurring most frequently
factor
equation
Probability for each event then multiply individual probabilities together

38. 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)=
even number
distributive property
even
factor pair

39. Number divisible by 4
Last two digits divisible by 4
difference
product
less than

40. The largest number in a group of numbers
quotient
greatest
least common multiple
difference

41. The expression of a number as a product of prime factors; use a factor tree!
associative property
difference
Sum of digits divisible by 9
prime factorization

42. Properties of 0

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43. How much a number is worth
value
equal
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined
evaluate

44. An equation showing 2 ratios are equal
compatible numbers
proportion
Number of decimal places is total number of decimals places in factors multiplied
place value

45. To drop a percent
compute
Divisible by 2 and 3
Divide by 100%
compensation

46. Natural Numbers - Whole Numbers - Integers - Rational Numbers
Invert second term - then multiply
associative property
rational numbers
improper fraction

47. 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)
even
associative property
Last two digits divisible by 4
LCM is LCD

48. Two numbers or expressions that mean the same thing - E.g. 2/3=4/6
LCM is LCD
greater than
equivalent
prime number

49. A number without fractions; an integer- E.g. 0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9...
improper fraction
percent
whole number
distributive property

50. New whole
identity property
Original whole +/- amount of change
compatible numbers
Adding/subtracting 0 from number doesn't change number; number multiplied by 0 is 0; division by 0 undefined