2.1 Introduction to simple interest.

●                 Simple interest formula.

●                 Simple amount formula.

2.2 Term/period/duration

●                 Exact time and approximate time.

●                 Ordinary simple interest and exact simple interest.

●                 Banker’s Rule.

2.3 Finding I, S, P, r, and t.

2.4 Miscellaneous situations

●                 Case where withdrawal after certain period.

●                 Case where addition after certain period.

●                 Case where different interest rate after certain period.

2.5 Introduction to bank discount.

●                 Bank discount formula.

●                 Proceeds formula.

●                 Finding D, H, S, and d.