
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 the following expressions:
1. $2-(-4)+8\div (-2)+(-3)$;
2. $25\times \frac{3}{4}-(-25)\times \frac{1}{2}+25\times (-\frac{1}{4})$;
3. $(\frac{1}{2}+\frac{5}{6}-\frac{7}{12})\times (-24)$;
4. $-{3}^{2}÷(-2)^{2}×|-1\frac{1}{3}|×6+(-2)^{3}$.

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