Question 1
Add:
Explanation: Add the ones digits.
Add the tens digits.
Add the hundreds digits. The hundreds digit for the second number is zero.
There are no carry overs in this question.
Combine all the numbers for the final answer.
The answer is: 
Add the tens digits.
Add the hundreds digits. The hundreds digit for the second number is zero.
There are no carry overs in this question.
Combine all the numbers for the final answer.
The answer is: