You just add 0.
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It is equivalent to dividing by ten to the equivalent positive power.
easy!;
Once, to the right, for every power of ten.
why does multiplying numbers by ten move the decimal point to the right
That's a phenomenon that you notice after the fact. Try it out. Multiply any whole number by ten. 3 x 10 = 30 492 x 10 = 4920 It's the way the decimal system is structured. Ten to the first power is ten. Ten to the second power is one hundred. Since multiplying a number by ten adds a zero, the reverse is true. Adding a zero to the back of a number multiplies it by ten.