Final answer:
To find the sum, align the decimal points and add the digits in each place value column.
Step-by-step explanation:
To find the sum of these numbers, you need to add them together. Start by aligning the decimal points and add the digits in each place value column. Here is how it's done:
106.90 + 149.37 + 158.24 + 16.00 --------- 430.51
Therefore, the sum of 106.9, 149.37, 158.24, and 16 is 430.51.
Learn more about Adding decimals