Mathematics is one of the most difficult and important subjects. Many students love it, and many are afraid of it. Well, for ...

When you multiply by 1 the answer stays the same. 21 × 1 = 21 When you multiply by 10, move all the digits one place to the left, putting a zero in the empty space. 21 × 10 = 210 When you ...

exact rational fractions, and symbolic expansions—built for unstoppable discrete math adventures. Implements integer values of arbitrary magnitude. Includes all standard arithmetic and logic ...