/**
 * Returns the sum of two numbers (`val1 + val2`).
 * String values are automatically converted to numbers.
 * @param {number|string} val1 The first operand.
 * @param {number|string} val2 The second operand.
 * @returns {number} The sum of the two values.
 * @example
 * ```handlebars
 * {{!-- results in: 15 --}}
 * {{add price tax}}
 * ```
 */
export declare const add: (val1: number | string, val2: number | string) => number;
/**
 * Returns the difference of two numbers (`val1 - val2`).
 * String values are automatically converted to numbers.
 * @param {number|string} val1 The minuend.
 * @param {number|string} val2 The subtrahend.
 * @returns {number} The difference of the two values.
 * @example
 * ```handlebars
 * {{!-- results in: 3 --}}
 * {{sub 5 2}}
 * ```
 */
export declare const sub: (val1: number | string, val2: number | string) => number;
/**
 * Returns the product of two numbers (`val1 * val2`).
 * String values are automatically converted to numbers.
 * @param {number|string} val1 The first factor.
 * @param {number|string} val2 The second factor.
 * @returns {number} The product of the two values.
 * @example
 * ```handlebars
 * {{!-- results in: 500 --}}
 * {{multiply quantity unitPrice}}
 * ```
 */
export declare const multiply: (val1: number | string, val2: number | string) => number;
/**
 * Returns the quotient of two numbers (`val1 / val2`).
 * String values are automatically converted to numbers.
 * @param {number|string} val1 The dividend.
 * @param {number|string} val2 The divisor.
 * @returns {number} The quotient of the two values.
 * @example
 * ```handlebars
 * {{!-- results in: 5 --}}
 * {{divide 10 2}}
 * ```
 */
export declare const divide: (val1: number | string, val2: number | string) => number;
/**
 * Rounds a number up to the nearest integer.
 * @param {number|string} val The number to round up.
 * @returns {number} The smallest integer greater than or equal to the given number.
 * @example
 * ```handlebars
 * {{!-- results in: 6 --}}
 * {{ceil 5.1}}
 * ```
 */
export declare const ceil: (val: number | string) => number;
/**
 * Rounds a number down to the nearest integer.
 * @param {number|string} val The number to round down.
 * @returns {number} The largest integer less than or equal to the given number.
 * @example
 * ```handlebars
 * {{!-- results in: 5 --}}
 * {{floor 5.9}}
 * ```
 */
export declare const floor: (val: number | string) => number;
/**
 * Returns the absolute value of a number.
 * @param {number|string} val The number to compute the absolute value of.
 * @returns {number} The non-negative value.
 * @example
 * ```handlebars
 * {{!-- results in: 5.6 --}}
 * {{abs -5.6}}
 * ```
 */
export declare const abs: (val: number | string) => number;