Custom Calculation Engine And Formula Building

via “calculator-integrated solution generation with annotation-based computation”

8.5K grade school math problems — multi-step reasoning, verifiable solutions, reasoning benchmark.

Unique: Dual-mode annotation system where the same <<expression=result>> format serves as training signal (models learn to produce it) and inference hook (calculator detects and evaluates it), creating a learnable interface between language generation and deterministic computation without requiring separate tool-calling infrastructure

vs others: Simpler than external tool-calling APIs (no function registry or schema negotiation needed) and more interpretable than black-box arithmetic, but less flexible than full function-calling systems for complex operations