The number 400 is written in words as four hundred.
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8 211 321 400
400 *0.25 ------------- 100
To write 400 billion in numbers, you would write it as 400,000,000,000. This is because each comma represents a grouping of three digits in the numerical system. So, 400 billion is written as 400 followed by nine zeros.
91 million 400 thousand how do you write it in standard form
119