| 99813 | Rational Expressions · Exercise 51 | Medium | |
| 99815 | Rational Expressions · Exercise 53 | Medium | |
| 99816 | Rational Expressions · Exercise 55 | Medium | |
| 99818 | Rational Expressions · Exercise 57 | Deep | |
| 99820 | Rational Expressions · Exercise 59 | Deep | |
| 99823 | Rational Expressions · Review Exercise 62 | Medium | |
| 99825 | Rational Expressions · Review Exercise 64 | Medium | |
| 99827 | Rational Expressions · Review Exercise 66 | Medium | |
| 99829 | Rational Expressions · Review Exercise 70 | Medium | |
| 99831 | Rational Expressions · Review Exercise 72 | Medium | |
| 99833 | Rational Expressions · Review Exercise 74 | Medium | |
| 99835 | Rational Expressions · Review Exercise 76 | Medium | |
| 99837 | Rational Expressions · Review Exercise 78 | Medium | |
| 99839 | Rational Expressions · Review Exercise 80 | Medium | |
| 99841 | Rational Expressions · Review Exercise 82 | Medium | |
| 99843 | Rational Expressions · Review Exercise 84 | Medium | |
| 99845 | Rational Expressions · Review Exercise 86 | Medium | |
| 99847 | Rational Expressions · Review Exercise 88 | Medium | |
| 99849 | Rational Expressions · Review Exercise 90 | Medium | |
| 99851 | Rational Expressions · Review Exercise 92 | Medium | |
| 99853 | Rational Expressions · Review Exercise 94 | Medium | |
| 99855 | Rational Expressions · Review Exercise 96 | Medium | |
| 99857 | Rational Expressions · Review Exercise 98 | Medium | |
| 99859 | Rational Expressions · Review Exercise 100 | Medium | |
| 99861 | Rational Expressions · Review Exercise 102 | Medium | |
| 99863 | Rational Expressions · Review Exercise 104 | Medium | |
| 99865 | Rational Expressions · Review Exercise 106 | Medium | |
| 99867 | Rational Expressions · Review Exercise 108 | Medium | |
| 99869 | Rational Expressions · Review Exercise 110 | Medium | |
| 99871 | Rational Expressions · Review Exercise 112 | Medium | |
| 99873 | Rational Expressions · Review Exercise 114 | Medium | |
| 99875 | Rational Expressions · Review Exercise 116 | Medium | |
| 99877 | Rational Expressions · Review Exercise 118 | Medium | |
| 99879 | Rational Expressions · Review Exercise 120 | Medium | |
| 99881 | Rational Expressions · Review Exercise 122 | Medium | |
| 99883 | Rational Expressions · Review Exercise 124 | Medium | |
| 99885 | Rational Expressions · Review Exercise 126 | Medium | |
| 99887 | Rational Expressions · Review Exercise 128 | Medium | |
| 99889 | Rational Expressions · Review Exercise 130 | Medium | |
| 99891 | Rational Expressions · Exercise 132 | Medium | |
| 99893 | Rational Expressions · Exercise 134 | Medium | |
| 99895 | Rational Expressions · Exercise 136 | Medium | |
| 99897 | Rational Expressions · Exercise 138 | Medium | |
| 99899 | Rational Expressions · Exercise 140 | Medium | |
| 99901 | Rational Expressions · Exercise 142 | Medium | |
| 99903 | Rational Expressions · Exercise 144 | Medium | |
| 99905 | Rational Expressions · Exercise 146 | Medium | |
| 99907 | Rational Expressions · Exercise 148 | Medium | |
| 99909 | Rational Expressions · Exercise 150 | Medium | |
| 99911 | Rational Expressions · Exercise 152 | Medium | |