Billion

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Billion is a thousand million. One billion is written 1,000,000,000. This is the standard definition in the United States. In some European countries and elsewhere, a billion can mean a million million, or 1,000,000,000,000.

Decimal system

Decimal system is a way of writing numbers. Any number, from huge quantities to tiny fractions, can be written in the decimal system using only the… See more »

Trillion

Trillion is a million million. One trillion is written 1,000,000,000,000. This definition is standard in the United States. In some European… See more »

Rational number

Rational, RASH uh nuhl, number is any number that can be expressed in the form a/b, where a is any integer and b is any integer except zero.… See more »

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Billion

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