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SOS 2nd/3rd Grade > Math > Flashcards

Math Flashcards

1
Q

digit

A

any number 0-9

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2
Q

compare

A

compare a number

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3
Q

decompose numbers

A

to take a number apart into other, smaller parts

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4
Q

digit

A

any number 0-9

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5
Q

expanded form

A

a form that puts a number as a sum of it’s place values

60,000+5,000+300+70+8= 65,378

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6
Q

open number line

A

number line without any numbers that can be used for any number sentence

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7
Q

order numbers

A

to put numbers in order from least to greatest or greatest to least (based on place value)

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8
Q

standard form

A

form of a number using only digits (65,378)

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9
Q

word form

A

a form when the number is written in words (sixty-five thousand, three hundred seventy eight)

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10
Q

addend

A

the “parts” of a number sentence

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11
Q

place value

A

ones tens hungsnyiue

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12
Q

difference

A

what is left after subtracting

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13
Q

equation

A

number sentence with an equal sign

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14
Q

estimation

A

a guess

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15
Q

rounding

A

changing a number to it’s closest ten, hundred, thousand, etc., in order to make it compatible and easier to work with

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16
Q

fluency

A

knowing math facts in 3 seconds or less

17
Q

perimeter

A

the distance around the OUTSIDE of a figure

18
Q

polygon

A

any shape with at least 3 straight, closed sides

19
Q

sum

A

two addends put together

20
Q

subtrahend

A

the “parts” in a subtraction problem

21
Q

area

A

the number of square units a figure covers

22
Q

area model

A

arrangement of squares in grid format

23
Q

automaticity

A

immediately saying answer to math fact

24
Q

expression

A

math number sentence with no equals sign

25
Q

factor

A

numbers being multiplied

26
Q

product

A

answer to multiplication equation

SOS 2nd/3rd Grade (16 decks)

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