How to Solve the Addition Problem 9 + 9 Step-by-Step and Get the Correct Answer

9+9=

To solve the addition problem 9 + 9, you simply combine the two numbers together

To solve the addition problem 9 + 9, you simply combine the two numbers together.

You can start by adding the units place, which is 9 + 9 = 18.

Since the sum of the units place is greater than 9, you need to carry the digit 1 to the tens place. So, you write down the 8 in the units place and carry over the 1 to the tens place.

Next, you add the digits in the tens place, which is 1 + 9 = 10.

Again, the sum of the tens place is greater than 9, so you carry the digit 1 to the hundreds place. You write down the 0 in the tens place and carry over the 1 to the hundreds place.

Finally, you add the digits in the hundreds place, which is the carried over 1 and the 9: 1 + 9 = 10.

This time, the sum of the hundreds place is exactly 10. You write down the 0 in the hundreds place and carry over the 1 to the thousands place.

Since there are no more digits to add, you write down the carried 1 in the thousands place.

So, the final answer for 9 + 9 is 18.

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