export declare function add(fn: (props?: any) => number, addend: number): (props?: any) => number;
export declare function subtract(fn: (props?: any) => number, subtrahend: number): (props?: any) => number;
export declare function multiply(fn: (props?: any) => number, factor: number): (props?: any) => number;
export declare function divide(fn: (props?: any) => number, divisor: number): (props?: any) => number;