Question

What is the sum of 5.3 x 10^5 and 3.8 x 10^4 in scientific notation?

Answer 1

Answer:

The required expression is $5.68\times 10^5$

Step-by-step explanation:

Given : Expression $5.3\times 10^5$ and $3.8\times 10^4$

To find : What is the sum of the given expression?

Solution :

Step 1 - Write the expression

$5.3\times 10^5$ and $3.8\times 10^4$

Step 2 - Add both expression

$=5.3\times 10^5+3.8\times 10^4$

Step 3 - Taking $10^4$ common

$=10^4(5.3\times 10+3.8)$

$=10^4(53+3.8)$

Step 4 - Add the parenthesis terms

$=10^4\times 56.8$

or In scientific notation $5.68\times 10^5$

Therefore, The required expression is $5.68\times 10^5$

Answer 2

5.3×10^5=53×10^4
53×10^4+3.8×10^4
=56.8×10^4
=5.68×10^5. Hope it help!