Specific Tricks Level 1: x11 (1d x 11). ten plus one.
1. Times ten
1.
Use 11 as 10 plus 1.
2. Add one copy
2.
Add the starting number once more.
3. Read answer
3.
Read the complete product.
Use 11 as 10 plus 1.
Add the starting number once more.
Read the complete product.