19 is only 1 away from 20, so you prefer to start by multiplying 20 times 5, which equals 100. Then we need to take away a squadron of 5, because there are actually only 19 squadrons, not 20. 100 take ...

Mastering double-digit multiplication is an essential skill in mathematics. It may seem challenging at first, but with practice and the right methods, it can be easily accomplished. In this article, ...

Step 2: Starting from the least significant digit, multiply each digit vertically (digit-by-digit) and write down the product. Step 3: Then multiply digits crosswise, with the digits diagonally ...

After duplex numbers, let us learn multiplication by triplex numbers. As the name suggests, numbers like 111, 222, 333 are triplex numbers. The method is similar to that of multiplication by duplex ...

The basic idea of this algorithm is to multiply the multiplicand by each digit of the multiplier and then add up all the properly shifted results. It's complexity is O(n^2), where n is the maximum ...