Multiplying by multiples of 10 helps us quickly calculate larger numbers. It involves shifting digits to the left and placing zeros at the end.
When we multiply by multiples of 10, each digit in the original number gets shifted one place to the left. Placing a zero at the end ensures that we maintain the correct place value.
Multiplying by multiples of 10 is useful for solving problems involving quantities that are ten times larger or smaller than another quantity. For example, calculating prices when buying multiple items or determining distances when converting between kilometers and meters.