Need to setup four different algorithms and flowcharts for calculating a students letter grade given the following (do not use straight-through logic);

90-100 = A

80-89 = B

70-79 = C

60-69 = D

below 60 = F

The solutions in the text study book are incorrect. I'm not looking for answers, just an understanding. Once the algorithims are developed, I can easily create the flowcharts.