Question

Express the results of the following calculations to the appropriate number of significant digits 816 + 0.02456 + 215.36.

Answer 1

Answer:

In this calculation 0.5 has minimum number of significant digits. It has only one significant digit. The result of this calculation is, therefore , to be rounded off to one significant digit.

(2.34×10−8)×(0.5)6.4

=1.17×10−86.4=0.1828125×10−8

Here 8, after 1 is greater than 5, so the result after rounding off is 0.2×10−8 .

Answer 2

Answer:

1031.38456 = l031 = 4 S. Fig.

Explanation:

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