Final answer:
To find a number that is 1/10th as large as another number, you should divide the original number by 10, moving the decimal point one place to the left.
Step-by-step explanation:
When asked to find the number 1/10th as large as another number, you would use the operation of division. This is because finding 1/10th of a number is essentially dividing it by 10. The process involves moving the decimal point one place to the left. For example, if you have the number 5.0 and you want to find what is 1/10th of it, you would calculate 5.0 ÷ 10, which gives 0.5. Therefore, the number 1/10th as large as 5.0 is 0.5.
Understanding this operation is also fundamental in metric conversions and calculations involving different units of measure which use powers of 10. This knowledge can be applied in various situations, such as converting millimeters to centimeters or in more complex scientific calculations where multiplying and dividing by powers of 10 is common.