Example
3.4 + 9.2
Step 1
Position the numbers so that the decimals line up.
3.4
+ 9.2
Step 2
Add the numbers.
3.4
+ 9.2
126
Step 3
Place a decimal in the answer in line with the numbers above.
3.4
+ 9.2
12
.6
The final answer is 12.6