Math Flashcards
digit
any number 0-9
compare
compare a number
decompose numbers
to take a number apart into other, smaller parts
digit
any number 0-9
expanded form
a form that puts a number as a sum of it’s place values
60,000+5,000+300+70+8= 65,378
open number line
number line without any numbers that can be used for any number sentence
order numbers
to put numbers in order from least to greatest or greatest to least (based on place value)
standard form
form of a number using only digits (65,378)
word form
a form when the number is written in words (sixty-five thousand, three hundred seventy eight)
addend
the “parts” of a number sentence
place value
ones tens hungsnyiue
difference
what is left after subtracting
equation
number sentence with an equal sign
estimation
a guess
rounding
changing a number to it’s closest ten, hundred, thousand, etc., in order to make it compatible and easier to work with
fluency
knowing math facts in 3 seconds or less
perimeter
the distance around the OUTSIDE of a figure
polygon
any shape with at least 3 straight, closed sides
sum
two addends put together
subtrahend
the “parts” in a subtraction problem
area
the number of square units a figure covers
area model
arrangement of squares in grid format
automaticity
immediately saying answer to math fact
expression
math number sentence with no equals sign
