What is 30 + 27?

What is 30 + 27?

• A. 56
• B. 57
• C. 58
• D. 59

Answer: (B)

To find the sum of 30 and 27, you simply add the two numbers together. Starting with 30, you can break down the addition as follows: 1. Start with 30. 2. Add 20 to get to 50. 3. Then, add the remaining 7, which gives you: 50 + 7 = 57. This calculation confirms that the correct answer to 30 + 27 is indeed 57. The addition can also be verified by stacking the numbers vertically: ``` 30 + 27 ____ 57 ``` This method further illustrates that if you combine the tens (30 and 20) to get 50, and then add the ones (0 and 7) to arrive at a total of 57, it aligns with the arithmetic rules of addition.

To find the sum of 30 and 27, you simply add the two numbers together. Starting with 30, you can break down the addition as follows:

1. Start with 30.

2. Add 20 to get to 50.

3. Then, add the remaining 7, which gives you:

50 + 7 = 57.

This calculation confirms that the correct answer to 30 + 27 is indeed 57. The addition can also be verified by stacking the numbers vertically:

30

+ 27

____

57

This method further illustrates that if you combine the tens (30 and 20) to get 50, and then add the ones (0 and 7) to arrive at a total of 57, it aligns with the arithmetic rules of addition.