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40 tens is another way of writing 4 hundreds because 40 tens would give you 400 and 4 hundreds also give you 400.

Another way to write 4 hundred is to express it in scientific notation which is 4.0 × 10²

Scientific notation is another way of expressing figures in standard form. It is a proper form of writing a large number in simpler ways.

Another way to 4 hundred is to express it in a standard form or scientific notation.

400 hundred in scientific notation = 4.0 × 10²

Therefore, we can conclude that 4 hundred is to express it in scientific notation which is 4.0 × 10².

Learn more about scientific notation here:

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