Thursday, June 7, 2007

Question 4

The results of arithmetic operations on numerical value A, which has 6 significant digits, and numerical value B, which has two significant digits, were rounded off. Which of the following is correct as an evaluation of the significant digits in the calculation results?

a) When A+B is performed, the result has six significant digits.
b) When A-B is performed, the result has six significant digits.
c) When A×B is performed, the result has two significant digits.
d) When A÷B is performed, the result has three significant digits.

answer

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