Step 1
To find a, take the number and move a decimal place to the right one position.
Original Number: 220,000
New Number: 2.20000
Step 2
Now, to find b, count how many places to the right of the decimal.
New Number: 2 . 2 0 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 10^b
a = 2.2 (Please notice any zeroes on the end have been removed)
b = 5
Now the whole thing:
2.2 x 10^5