
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
Use a simplified method to calculate (must show steps):
(1) $25 \times 26 \times 8$
(2) $340 \times 40 \div 17$
(3) $440 \times 15 + 480 \times 15 + 79 \times 15 + 15$.

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