| 110919 | Decimal Operations · Exercise 23 | Easy | |
| 110921 | Decimal Operations · Exercise 25 | Easy | |
| 110923 | Decimal Operations · Exercise 27 | Easy | |
| 110925 | Decimal Operations · Exercise 29 | Easy | |
| 110927 | Decimal Operations · Exercise 31 | Easy | |
| 110929 | Decimal Operations · Exercise 33 | Easy | |
| 110931 | Decimal Operations · Exercise 35 | Easy | |
| 110933 | Decimal Operations · Exercise 37 | Easy | |
| 110935 | Decimal Operations · Exercise 39 | Easy | |
| 110937 | Decimal Operations · Exercise 41 | Easy | |
| 110939 | Decimal Operations · Exercise 43 | Easy | |
| 110941 | Decimal Operations · Exercise 45 | Easy | |
| 110943 | Decimal Operations · Exercise 47 | Easy | |
| 110945 | Decimal Operations · Exercise 49 | Easy | |
| 110947 | Decimal Operations · Exercise 51 | Easy | |
| 110949 | Decimal Operations · Exercise 53 | Easy | |
| 110951 | Decimal Operations · Exercise 55 | Easy | |
| 110953 | Decimal Operations · Exercise 57 | Easy | |
| 110955 | Decimal Operations · Exercise 59 | Easy | |
| 110957 | Decimal Operations · Exercise 61 | Easy | |
| 110959 | Decimal Operations · Exercise 63 | Easy | |
| 110961 | Decimal Operations · Exercise 65 | Easy | |
| 110963 | Decimal Operations · Exercise 67 | Easy | |
| 110965 | Decimal Operations · Exercise 69 | Easy | |
| 110967 | Decimal Operations · Exercise 71 | Easy | |
| 110969 | Decimal Operations · Exercise 73 | Easy | |
| 110971 | Decimal Operations · Exercise 75 | Easy | |
| 110973 | Decimal Operations · Exercise 77 | Easy | |
| 110975 | Decimal Operations · Exercise 79 | Easy | |
| 110977 | Decimal Operations · Exercise 81 | Easy | |
| 110979 | Decimal Operations · Exercise 83 | Easy | |
| 110981 | Decimal Operations · Exercise 85 | Easy | |
| 110983 | Decimal Operations · Exercise 87 | Easy | |
| 110985 | Decimal Operations · Exercise 89 | Easy | |
| 110987 | Decimal Operations · Exercise 91 | Easy | |
| 110989 | Decimal Operations · Exercise 93 | Easy | |
| 110991 | Decimal Operations · Exercise 95 | Easy | |
| 110993 | Decimal Operations · Exercise 97 | Easy | |
| 110995 | Decimal Operations · Exercise 99 | Easy | |
| 110997 | Decimal Operations · Exercise 101 | Easy | |
| 111672 | Understand Percent · Try It 1 | Easy | |
| 111673 | Understand Percent · Try It 2 | Easy | |
| 111675 | Understand Percent · Try It 3 | Easy | |
| 111676 | Understand Percent · Try It 4 | Easy | |
| 111678 | Understand Percent · Try It 5 | Easy | |
| 111679 | Understand Percent · Try It 6 | Easy | |
| 111681 | Understand Percent · Try It 7 | Easy | |
| 111682 | Understand Percent · Try It 8 | Easy | |
| 111684 | Understand Percent · Try It 9 | Easy | |
| 111685 | Understand Percent · Try It 10 | Easy | |