Mixed Double Digit Multiplication Worksheets
How to Multiply Double Digit Numbers - Double-digit multiplication simply means doing single-digit multiplication twice. When we start doing double-digit multiplication, we take the numbers present in the ones place and the progress to multiplying the number present in the tens place. Below we have discussed the steps that go into performing double-digit multiplication We start by writing down the sum in the right way. Place one double-digit number on top and the second double-digit directly below the first one. Next, we take the number present in the ones place of the bottom number. We will multiply the ones place of the bottom number into the ones place of the number written at the top. Make sure that you write the result directly below the line. Using the same number written at the bottom, we multiply the tens places. Take the ones place of one number and multiply it with the tens place of number written directly above the bottom number. Write the result directly under the line. Next, we will write the zero under the ones place of the result. Again, we will take the tens place of the bottom number and multiply it with the ones place of the number written at the top. We will multiply the tens place of the bottom number with the tens place of the number written at the top. Once we have the products, we will add them to get the final answer.
A diner had a set of regular customers. One came every day, the second came every other day, a third came every third day and all the way to the seventh who came in once a week. How many days go by until they all come in together? 420 is the LCM of 1 - 7.