How much is a billion plus a billion?

100 million plus 100 million equals 200 million.

One billion, pictophonetic characters. From people, it means voice. Originally meant safety. Said: "100 million, Anye." Twenty-one years of Zuo Zhao Zhuan Gong: "A billion hearts will make you happy." Du pre-note: "100 million, Anya." Counting unit, or "100 million" or "10 trillion".

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After 100 million, the counting units are 100 billion, 100 billion, trillion,100 trillion, trillion, trillion,100 trillion, gigabit, trillion. According to Shu Shu Ji Yi in the Eastern Han Dynasty, it is absolutely one billion, one billion is one trillion, and one trillion is Beijing.

Mega: stands for the twelfth power of 10.

Jing: stands for the sixteenth power of 10.

E: stands for the twentieth power of 10.

Xun: stands for the 24th power of 10.