/**
 * Add two numbers.
 * For example, 1 + 2 = 3.
 *
 * @param {number} a
 * @param {number} b
 * @returns {number} number
 */
export declare const add: (a: number, b: number) => number;
/**
 * Subtract two numbers.
 * For example, 2 - 1 = 1.
 *
 * @param {number} a
 * @param {number} b
 * @returns {number} number
 */
export declare const subtract: (a: number, b: number) => number;
/**
 * Multiply two numbers.
 * For example, 2 * 2 = 4.
 *
 * @param {number} a
 * @param {number} b
 * @returns {number} number
 */
export declare const multiply: (a: number, b: number) => number;
/**
 * Divide two numbers.
 * For example, 4 / 2 = 2.
 *
 * @param {number} a
 * @param {number} b
 * @returns {number} number
 */
export declare const divide: (a: number, b: number) => number;