Adding Four Two Digit Numbers

Mr. Squeaks has been trying and trying to fly. He built a plane, but it didn't quite work. He's hoping that if he tries a kite, it might work! But, he needs to add all of the fabric pieces together and isn't sure how. We can help him by learning about 'Adding Four Two-Digit Numbers' You might know about math expressions that use two addends, such as twenty-two plus ten or adding three addends, such as twenty-two plus ten plus seven. So, what happens when there are four addends? Today we will learn about a strategy to add four addends. When adding four addends, start by writing all of the addends in a column vertically. Next, add all of the ones place numbers together, these are the numbers on the right. Then; add all of the tens place numbers together, these are the numbers on the left. Finally, the number under the line is the answer! We need to help our furry friend add four addends together. Mr. Squeaks is first adding four pieces of fabric with different measurements. He is adding twenty-one plus ten, plus twenty-one, plus twelve. Remember, we can start by writing all of the addends in a column vertically like this. Next, we can add all of the ones place numbers. One plus zero plus one plus two equals four! Then, we can add all of the tens place numbers. Two plus one plus two plus one equals six! Finally, the number under the line is the answer! That means that Mr. Squeaks' final measurement is sixty-four. That measurement was too small for our friend, so he needs to add again using new fabric. If he adds ten plus twenty-six, plus thirty-two, plus eleven, how much fabric will he have? Start by writing all of the addends in a column vertically, like this. Then, add all of the ones place numbers. What is zero plus six, plus two, plus one? Nine! Next, add all of the tens place numbers. What is one plus two, plus three, plus one? Seven! Finally, the number under the line is the answer! That means that Mr. Squeaks has seventy-nine pieces of fabric. This fabric was still too small for our furry friend, let's try one last time. This time we need to add twenty-two plus thirteen, plus forty, plus twenty-four. First, we can write all of the numbers vertically. Then, we need to add all of the ones numbers. After that, we need to add all of the tens numbers. Finally, the number under the line is the answer! How many pieces of fabric does Mr. Squeaks have? He has ninety-nine pieces of fabric! Before we see if Mr. Squeaks finally got to fly, let's remember. When adding four two-digit addends, start by writing all of the addends in a column vertically. Next, add all of the ones place numbers together. Then, add all of the tens place numbers together. Finally, the number under the line is the answer! Now, did Mr. Squeaks Finally fly? : "I'm flying! I'm flying! I'm falling!" : "That was close, thanks, Imani!