What is 18 × 34?

When multiplying manually, multiply the first number by the first digit (ones value) of the second number, in this case: 18 ×4 = 72 then multiply the first number by the second digit (tens value) of the second number, in this case: 18 x 30 = 540 then add the two results: 72+540=612.
When multiplying with a calculator, simply key in the correct numbers (18 and 34) using the correct mathematical operational sign (x) in between the numbers.