Final answer:
To add 3.2, 1.4, and 2.34, line up their decimal points and add the numbers vertically. The sum is 6.94.
Step-by-step explanation:
To add 3.2, 1.4, and 2.34, you can line up the decimal points and add the numbers vertically:
3.20
+1.40
+2.34
------
6.94
Therefore, 3.2 + 1.4 + 2.34 equals 6.94. The answer has the same number of decimal places as the number with the most decimal places in the given numbers.