Multiplication of three-digit numbers by one-digit numbers can be done by using the following steps: 1. Multiply the first digit of the multiplier by the multiplicand. 2. Place the product of this multiplication in the tens place of the product. 3. Multiply the tens digit of the multiplier by the multiplicand and add the product to the number in the tens place of the product. 4. Place the sum in the hundreds place of the
