Final answer:
The correct answer is option C. 23.4.The sum of 22.9 and 0.5 is 23.4, making the correct answer option C.
Step-by-step explanation:
To find the sum of 22.9 and 0.5, simply add the two numbers together:
22.9 + 0.5 = 23.4
So the answer is 23.4.The correct answer is option C. To find the sum of 22.9 and 0.5, you simply add the two numbers together. Start by lining up the decimal points:
22.9
+0.5
———
23.4
When you add 9 and 0, you get 9; then add 2 and 5 (which makes 7), but since there's no tens place to carry over, you just write down 3 in the tens place. Therefore, the sum of 22.9 and 0.5 is 23.4.