Number tap to zero
Do you think subtraction or addition is easier?
| Category | Price | Seller | Device |
|---|---|---|---|
| Games | Free | Crystal Cao | iPhone, iPad, iPod |
You will use subtraction and computational thinking to reduce the numbers to zero.
Easy is not it? But do not be subjective because it will be difficult if you subtract a few wrong steps. It's harder when the numbers will grow and your speed must be increased.
