The expression "2 × 4 + 3" involves basic arithmetic operations: multiplication and addition. First, you multiply 2 by 4, which equals 8. This step follows the order of operations, where multiplication is performed before addition. Next, you take the result of the multiplication, 8, and add 3 to it. This gives you a final result of 11. Therefore, the complete calculation of "2 × 4 + 3" equals 11.