| 107931 | Add Whole Numbers · Exercise 65 | Easy | |
| 107933 | Add Whole Numbers · Exercise 67 | Easy | |
| 107935 | Add Whole Numbers · Exercise 77 | Medium | |
| 107937 | Add Whole Numbers · Exercise 79 | Medium | |
| 107938 | Add Whole Numbers · Exercise 80 | Medium | |
| 107954 | Subtract Whole Numbers · Try It 9 | Easy | |
| 107955 | Subtract Whole Numbers · Try It 10 | Easy | |
| 107957 | Subtract Whole Numbers · Try It 11 | Easy | |
| 107958 | Subtract Whole Numbers · Try It 12 | Easy | |
| 107960 | Subtract Whole Numbers · Try It 13 | Easy | |
| 107961 | Subtract Whole Numbers · Try It 14 | Easy | |
| 107963 | Subtract Whole Numbers · Try It 15 | Easy | |
| 107964 | Subtract Whole Numbers · Try It 16 | Easy | |
| 107966 | Subtract Whole Numbers · Try It 17 | Easy | |
| 107967 | Subtract Whole Numbers · Try It 18 | Easy | |
| 107969 | Subtract Whole Numbers · Try It 19 | Easy | |
| 107970 | Subtract Whole Numbers · Try It 20 | Easy | |
| 107972 | Subtract Whole Numbers · Try It 21 | Easy | |
| 107973 | Subtract Whole Numbers · Try It 22 | Easy | |
| 107975 | Subtract Whole Numbers · Try It 23 | Easy | |
| 107976 | Subtract Whole Numbers · Try It 24 | Easy | |
| 107978 | Subtract Whole Numbers · Try It 25 | Easy | |
| 107979 | Subtract Whole Numbers · Try It 26 | Easy | |
| 107980 | Subtract Whole Numbers · Exercise 1 | Easy | |
| 107998 | Subtract Whole Numbers · Exercise 19 | Easy | |
| 108000 | Subtract Whole Numbers · Exercise 21 | Easy | |
| 108002 | Subtract Whole Numbers · Exercise 23 | Easy | |
| 108004 | Subtract Whole Numbers · Exercise 25 | Easy | |
| 108006 | Subtract Whole Numbers · Exercise 27 | Easy | |
| 108008 | Subtract Whole Numbers · Exercise 29 | Easy | |
| 108010 | Subtract Whole Numbers · Exercise 31 | Easy | |
| 108012 | Subtract Whole Numbers · Exercise 33 | Easy | |
| 108014 | Subtract Whole Numbers · Exercise 35 | Easy | |
| 108016 | Subtract Whole Numbers · Exercise 37 | Easy | |
| 108018 | Subtract Whole Numbers · Exercise 39 | Easy | |
| 108020 | Subtract Whole Numbers · Exercise 41 | Easy | |
| 108022 | Subtract Whole Numbers · Exercise 43 | Easy | |
| 108024 | Subtract Whole Numbers · Exercise 45 | Easy | |
| 108026 | Subtract Whole Numbers · Exercise 47 | Easy | |
| 108028 | Subtract Whole Numbers · Exercise 49 | Easy | |
| 108030 | Subtract Whole Numbers · Exercise 51 | Easy | |
| 108032 | Subtract Whole Numbers · Exercise 53 | Easy | |
| 108034 | Subtract Whole Numbers · Exercise 55 | Easy | |
| 108036 | Subtract Whole Numbers · Exercise 57 | Easy | |
| 108038 | Subtract Whole Numbers · Exercise 59 | Easy | |
| 108040 | Subtract Whole Numbers · Exercise 61 | Easy | |
| 108042 | Subtract Whole Numbers · Exercise 63 | Easy | |
| 108044 | Subtract Whole Numbers · Exercise 65 | Easy | |
| 108046 | Subtract Whole Numbers · Exercise 67 | Easy | |
| 108048 | Subtract Whole Numbers · Exercise 69 | Easy | |