
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
Calculate:
1. $6.8-(-4.2)+(-4)\times (-3)$;
2. $-1^{2}+|-11|-(-8)$;
3. $-1^4-\frac{1}{3}\times[3-(-3)^2]$;
4. $-3^2+\frac{2}{3}\times[2+(-2)^3]-3÷(-\frac{1}{4})$.

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