Question

Jennifer wants to convert 7.85 meters to centimeters but she does not have paper pencil or calculator describe a method she can use

Answer 1

She can move the decemal place 2 places to the right because a centimeter is 100 times smaller than a meter. so it would be 785 centimeters

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Answer 2

As 1m = 100cm, you need to multiply 7.85 by 100, as 100 is a power of 10, this is easy, and can be done by moving the decimal point 2 places to the right.
7.85m -> 78.5 -> 785cm