an estimation method in which a group of number close are in value

number that have digits in the tenths place and beyond

fraction that name the same number

the sum of the product of each digit and its place

an method in which the front digit are added and subtracted

a math sentence that are not equal

number written without exponents

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Question	Answer
clustering	an estimation method in which a group of number close are in value
decimal	number that have digits in the tenths place and beyond
equivalent fraction	fraction that name the same number
expand form	the sum of the product of each digit and its place
front-end estimation	an method in which the front digit are added and subtracted
inequality	a math sentence that are not equal
standard form	number written without exponents