Question

(3.49*10^5)*(6.31*10^2)

Answer 1

Your answer is 220219000.

Hope this helps.

Answer 2

349000*631
3.49*100000*6.31*100
(3.49*6.31)*(100000*100)
22.0219*10000000
Now the answer is:
220219000

I hope this helps!