Write $4.3+3.88$ as a decimal.
I can write the numbers like this: $4.30 + 3.88$. Starting from the rightmost column, I have $0+8=8$. In the next column, I have $3+8=11$. Since 11 is more than 10, I need to carry a 1 to the next column and write 1 in the answer. In the next column, I have $4+3=7$, plus the 1 that I carried, so $7+1=8$. Finally, I bring down the decimal point in the same place as the original numbers. So the answer is $8.18$. 