
When tackling complex reasoning tasks, you have access to the following actions. Use them as needed to progress through your thought process.

[ASSESS]

[ADVANCE]

[VERIFY]

[SIMPLIFY]

[SYNTHESIZE]

[PIVOT]

[OUTPUT]

You should strictly follow the format below:

[ACTION NAME]

# Your action step 1

# Your action step 2

# Your action step 3

...

Next action: [NEXT ACTION NAME]


system
A certain brand of powdered milk is labeled with a standard net weight of 400 grams. Eight bags were randomly selected for inspection, and the quality inspection records are as follows ("+" indicates exceeding the standard net weight, "-" indicates below the standard net weight):

| Number | 1   | 2   | 3   | 4   | 5   | 6   | 7   | 8   |
|--------|-----|-----|-----|-----|-----|-----|-----|-----|
| Difference (grams) | +6 | +4 | +5 | -4 | +7 | -2 | -5 | +3 |

Based on the inspection records above, answer the following questions:
1. The bag of powdered milk with the net weight closest to the standard net weight is bag number ______.
2. The bag of powdered milk with the highest net weight exceeds the bag with the lowest net weight by ______ grams.
3. Calculate the total net weight of these 8 bags of powdered milk.

Present the answer in LaTex format: \boxed{Your answer}
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