
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. $1.4+(-0.2)+0.6+(-1.8)$;
2. $(-\frac{1}{6}+\frac{3}{2}-\frac{5}{12})\times(-48)$;
3. $(-\frac{1}{3})^3\times(-3)^2\times(-1)^{2011}$;
4. $-1^{3}\times (-5)\div [(-3)^{2}+2\times (-5)]$.

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