4th Grade Everyday Math Unit 5

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Unit Vocabulary

billion

the number that is represented as a one followed by 9 zeros (1,000,000,000)

estimation

making an educated guess at a measurement or amount

extended multiplication fact

A multiplication fact involving multiples of 10,100, and so on (Ex. 20 x 100 = 2,000)

exponent

the number of times a quantity (amount) is multiplied by itself

million

the number that is represented as a one followed by 6 zeros (1,000,000)

rough estimate

provides a guess of a final amout or value

round

(of numbers) to the nearest ten, hundred, or thousand

trillion

the number that is represented as a one followed by 12 zeros (1,000,000,000,000)

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