Multiplication (Column Method)

One afternoon long long ago, Mr. Squeaks decided to make a new invention out of spare parts. There's just one problem, all it displays is multiplication equations! Let's help Mr. Squeaks unlock his invention by multiplying up to three digits using the column method. The first equation we need to solve to help Mr. Squeaks is fifty-two times four. When we multiply numbers using the column method we place the larger number on top, and line up the other number below it. We must line up all the digits by place value, and include a multiplication symbol. In order to calculate fifty-two times four first, multiply the bottom factor by the ones place. Four times two is eight so we write it in the ones place here. Next move on to the next column. What is the product of four times five tens? Twenty tens, and we write it here. The product of fifty-two times four is two hundred and eight. Mr. Squeaks enters the product on the robot and another equation appears! Now, we'll calculate eighty-six times nine. First, set up the equation vertically by lining up the place values. Then, multiply the bottom factor by the ones place. What is the product of nine times six? Fifty four, so we write four in the ones column and a five in the tens column, as fifty ones is equal to five tens. Next, multiply the bottom factor by the tens place. What is the product of nine times eight tens? Seventy-two tens. Since we carried five tens to the tens place, we must add them on. Seventy-two tens plus five tens is seventy-seven tens. The product of eighty-six times nine is seven hundred and seventy-four. Mr. Squeaks enters the product on the robot, and one final equation appears! Lastly, we'll calculate two hundred and ninety-three times seven. First, set up the equation vertically by lining up the place values. Next, multiply the bottom factor by the ones place and make an exchange if the answer is two digits. What is the product of seven times three? Twenty-one, so we put one in the ones place and carry two tens here, as we can exchange twenty ones for two tens. Then, multiply the bottom factor by the tens place. What is the product of seven times nine tens? Sixty-three tens. Now, add the two tens we carried over after our exchange. Sixty-three plus two is sixty-five so we put five in the tens place and exchange our sixty tens for six hundreds, writing it in the hundred column. What do we do next? We multiply seven times two hundred to get fourteen hundreds. Then add on the six we carried over. Forteen plus six is twenty and we write it here. Remember to put a comma, starting after the ones and counting back three spaces. The product of two hundred and ninety-three times seven is two thousand and fifty-one! Remember when we multiply numbers up to three digits using the column method the first step is to set up the equation vertically by lining up the place values. The second step is to multiply the bottom factor by the ones place, making an exchange and carrying the digit over to the next column as needed. The third step is to multiply the bottom factor by the tens place, making an exchange if needed. The fourth step is to repeat the pattern until you have multiplied all the place values. Okay Mr. Squeaks, is your invention working? Mr. Squeaks has a new robot friend and it looks like he's called them Imani! What would you name his new friend? Write your name ideas in the comments below!