Question

Which operation must be performed on a whole number, M (where M > 0), to find its predecessor?

Options

• Adding 1 to M

• Subtracting 1 from M

• Multiplying M by 0.

• Subtracting 0 from M

Answer 1

Subtracting 1 from M

Explanation:

The predecessor of a number is defined as the previous number, which is obtained when you subtract 1 from the original number (M − 1).