
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 south wind rose in the night, covering the wheat field with a golden hue. This summer, Xiaopeng's family's wheat field had a bountiful harvest. One day, they harvested 10 bags of wheat, and the recorded weights (in kilograms) were as follows: 91, 91, 91.5, 89, 91.2, 91.3, 88.7, 88.8, 91.8, 91.1. Without a calculator, Xiaopeng wants to quickly calculate the total weight of these 10 bags of wheat.

(1) Xiaopeng observed that if 90 kilograms is taken as the standard, the excess weight is recorded as positive and the deficient weight is recorded as negative. Please write down the differences between the weight of each bag of wheat and 90 kilograms that Xiaopeng obtained.

(2) Using the differences obtained in (1), calculate the total weight of these 10 bags of wheat.

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