🧩 Level Information

• Level Number: 100
• Problem: The digits after the decimal point add up to 2. There is 10 above the decimal point, so enter the correct answer 10+2.
• Difficulty: Normal

🎯 Objective

Notice the mechanism of the decimal displayed on the screen, and from the fact that the sum of the digits after the decimal point is 2 and above the decimal point is 10, ultimately enter "12" as the answer.

📝 Step-by-Step Solution

1. Carefully observe the decimals displayed on the screen (e.g., 10.5, 10.7, 10.3, 10.5, etc.).
2. Focus only on the digits 'after' the decimal point and notice that their sum is 2.
3. Meanwhile, confirm that the part 'above' the decimal point sums up to 10 (or 10 is clearly the basis).
4. As mentioned in the problem statement, the sum of numbers "after" the decimal point = 2 and the sum "above" the decimal point = 10, hence, calculate 10 + 2.
5. Enter the calculation result of 12 into the answer box.
6. Press the confirm button (OK/Check mark) to clear.

💡 Hints

• Try thinking by separating the 'left side' and the 'right side' of the decimal point.
• What is the total if you add only the digits on the right side of the decimal?
• What does the left side of the decimal point look like it totals? There is a hidden keyword, 10.
• Try submitting the sum of the left side (10) and the right side (2) as the answer.

🧠 Explanation & Key Points

This problem seems like a simple calculation problem but is actually a puzzle that tests the idea of 'separately processing the left and right sides of the decimal point.' Many players tend to sum the numbers on the screen directly and get caught up in complex calculations, but from the beginning, the problem statement clearly states that 'the digits after the decimal point add up to 2' and 'there is 10 above the decimal point.' In other words, the key is to extract only the information that there are totals of 10 and 2 rather than the detailed individual values. Since the sum of the digits after the decimal point is 2 and above the decimal point is 10, you can simply compute 10 + 2 = 12 and input it to clear. This is a reading trick problem that converts the sentence literally into an equation.

🔍 Common Mistakes

• Trying to add up all the decimals displayed on the screen as they are and obtaining a detailed total.
• Failing to sum only the digits after the decimal point and adding them as integers while ignoring the decimal.
• Entering 10 or 2 arbitrarily without reading the problem statement.
• Being preoccupied with 'finding numbers that make 2' and missing the need to eventually add 10 and 2.

🎉 Advice After Clearing

This level hinged on treating the 'conditions written in the text' as a formula rather than the numbers themselves. In Brain Test, it will be important to read the problem statements carefully and decipher hidden formulas or hints in the future. Even in the next level, instead of trusting the displayed information as it is, proceed with the awareness of 'what should truly be calculated?'

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