Perform mental calculations, including with mixed operations and large numbers
| 1. | Same or Different - Click all the boxes where the answer is 576 | |
| 2. | Same or Different - Click all the boxes where the answer is 264 | |
| 3. | Number detectives: 40 x 7 | |
| 4. | Multi-multiplication: Use 4 different multipliers to change the number 25 |