Complete the arithmetic and report the answer to the correct number of significa

Question

Complete the arithmetic and report the answer to the correct number of significant figures. Remember to round up or down appropriately when you reduce the number of significant figures. Convert the given numbers to scientific notation. Use calculator format for scientific notation, e.g. 6.02times10^23 is 6.02E23, and 5.32times10^-4 is 5.32E-4. Determine the number of significant figures in each measured value. In 13,047, the zero is significant. In 4.020, both zeros are significant. In 6.02E23, only 6.02 is significant. In 1,500,000, the zeros are not significant.

Explanation / Answer

QUESTION 01

When adding and substracting, the answer should contain the least no of significant figures in the decimals of the figures added.

When multiplying and dividing, the answer should contain the no. of significant figures as the least significant digit in the problem.

Applying these rules;

a) 7.21 (2 significant figures in the decimal portion)

b) 4396 (4 significant figures)

c) 0.0490 (3 significant figures)

d) 0.4093 (4 significant figures)

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