Final answer:
To prevent errors on work sheets, using a calculator, double-checking arithmetic, and minimizing adjustments are effective methods. Additionally, retaining a guard digit during intermediate calculations and avoiding unnecessary rounding until the end can reduce rounding errors. All Option are correct.
Step-by-step explanation:
To prevent errors on a work sheet, one can apply several strategies. Firstly, using a calculator can help ensure that the basic arithmetic is correct, particularly when dealing with large numbers or complex calculations.
Second, double-checking arithmetic and calculations by repeating them can catch any mistakes that may have occurred the first time. Another effective method is to minimize adjustments by ensuring that the initial entries are as accurate as possible; this involves being cautious and deliberate when inputting data to reduce the need for later corrections.
It is also beneficial to integrate checks into the work process itself. For example, chemists retain a guard digit during intermediate calculations and perform computations in a single step to avoid rounding errors.
This same principle can be applied to financial worksheets by avoiding unnecessary rounding until the final step of a series of calculations.
Finally, applying what you know and confirming that the result seems reasonable is another way to ensure accuracy on a work sheet. For instance, keep in mind that a calculator may provide more or fewer significant figures than necessary, and this needs to be considered when performing and reviewing your calculations.