How to multiply 2 digit numbers by 2 digit numbers?
Multiplication is one of the four basic operations in mathematics and it gives the result of the product between two numbers.
Answer: The following steps are used to multiply 2 digit numbers by 2 digit numbers.
Let's take an example 32 × 21 to understand the multiplication step by step.
Step 1: Multiply the ones digit in the first row by the ones digit in the second row as shown, i.e., 2 × 1 = 2
Step 2: Place the product in the ones place.
Step 3: Multiply the tens digit of the first number with the ones digit of the second number, i.e., 3 × 1 = 3
Step 4: Place this digit in the bottom next to the ones digit of step 2.
Step 5: We will now be multiplying with the tens column. Write a 0 in the ones column as shown below.
Step 6: Multiply the ones digit of the first number with the tens digit of the second number, i.e., 2 × 2 = 4
Step 7: Write this number next to the 0 placed in step 5.
Step 8: Multiply the tens digit of the first and the second number, i.e., 3 × 2 = 6
Step 9: Write this digit at hundreds place beside the digit obtained in step 7.
Step 10: Add both the rows together as shown below, i.e., 2 + 0 = 2 (ones digit); 3 + 4 = 7 (tens digit); 0 + 6 = 6 (hundreds digit)
Hence, the product is 672.