index.md

---

title: Addition
slug: WebAssembly/Reference/Numeric/Addition

---

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The add instructions, are used for adding up two numbers, similar to the + operator in other languages.

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Syntax

;; load two numbers onto the stack
i32.const 10
i32.const 3

;; add up both numbers
i32.add

;; the top item on the stack will now be 13  (10 + 3 = 13)

Instruction	Binary opcode
i32.add	0x6a
i64.add	0x7c
f32.add	0x92
f64.add	0xa0