Vocabulary-Number Sense Flashcards


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created 12 years ago by fmarlatt
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updated 10 years ago by fmarlatt
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3rd grade, 4th grade
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1

Commutative Property

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2

Identity Property of Addition

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3

Associative Property of Addition

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4

addends

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5

sum

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6

round

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ABOUT how many or how much.
Closest number ending with 0.

7

estimate

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To give a number or answer that tells about how many or how much.

8

compatible numbers

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Numbers that are easy to add, subtract, multiply, or divide mentally.

9

fact family

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a group of related facts using the same numbers

10

difference

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The answer to a subtraction problem.

11

equivalent

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equal to

12

compute

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13

expanded form

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14

inverse operations

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Two operations that are the opposite of each other.

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compensation

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adding and subtracting the same number to make the sum or difference easier to find

16

numerator

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17

standard form

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a way to write a number only showing its digits
Example: 385

18

denominator

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19

word form

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a number written in words

four thousand, six hundred, thirty two

20

base 10 place value

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the value of the place a digit has in a number

21

digits

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the symbols 0, 1, 2, 3, 4, 5, 6, 7, 8,and 9, used to write numbers

22

compare

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to find out which number is greater and which number is less

23

ordinal number

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a number used to show the order of people or objects

24

decimal point

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a dot that separates dollars from cents and ones from tenths in a number
Example: $1.95, 1.9

25

integers

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26

array

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27

skip count

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28

set

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29

subset

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30

whole numbers

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no fraction, no decimals, no negatives

31

at least

as much as, equal to or greater than

32

at most

no more than, equal to or less than

33

factor

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a whole number that multiplies with another number to make a third number

34

fraction

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any part of a group, number or whole

Fractions have a numerator and a denominator

35

greater than

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36

less than

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37

mixed number

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a whole number and a fraction

38

model

...

39

multiplication

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an mathematical operation where a number is added to itself several times

40

division

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a math operation where a number is shared or grouped into equal parts

41

addition

a math operation where 2 or more groups are combined

45 + 13 = 58

42

subtraction

a math operation that takes one quantity away from another

63 - 19 = 44

43

number sentence

a mathematical sentence using symbols and numbers

an equation or a inequality with <, >, or =

2 + 3 = 5
1 + 3 > 2
8 - 2 < 7

44

place value

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the value of a digit depending on its place in a number

45

reasonable

an answer that makes sense

46

regrouping

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carrying in addition and borrowing in subtraction

47

sharing equally

fair share, dividing so that each group is equal

48

classify

to make a group based on similar characteristics

49

order

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arranged according to size, amount or value

50

distributive property

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6 x 27 =

breaking apart multiplication problems into similar problems