Question

Write 723000 in scientific notation ​

Answer 1

Answer:

7.23*10^5 is scientific notation

Answer 2

Follow the steps below to see how 723,000 is written in scientific notation.

Step 1

To find a, take the number and move a decimal place to the right one position.

Original Number: 723,000

New Number: 7.23000

Step 2

Now, to find b, count how many places to the right of the decimal.

New Number: 7 . 2 3 0 0 0

Decimal Count: 1 2 3 4 5

There are 5 places to the right of the decimal place.

Step 3

Building upon what we know above, we can now reconstruct the number into scientific notation.

Remember, the notation is: a x 10b

a = 7.23 (Please notice any zeroes on the end have been removed)

b = 5

Now the whole thing:

7.23 x 105

Step 4

Check your work:

105 = 100,000 x 7.23 = 723,000