Question

Perform the following operation to correct significant figures

6.8×10^4 + 3.1×10^5

Hint( the ans is 3.8 ×10^5) plss show the steps . Best ans will be marked as branliest

Answer 1

Explanation:

6.8×10^4+0.31×10^4

this is hint of my answer

Answer 2

Answer:

3.8 × 10^5

Explanation:

6.8×10^4 = 68000

3.1×10^5 = 310000

now....

6.8×10^4 + 3.1×10^5

= 68000 + 310000

= 378000

= 3.78 × 10^5

~ 3.8 × 10^5

Note :

1) addition of sig figs affect the no of decimal places only but not integral part

2) in the above, sig figs are two in each

3) in the above, decimal places are nil

4) round up the result to two sig figs. becoz the given values have two sig figs each