Category
📚
LearningTranscript
00:00Shhh! You have to be quiet. Mr. Robot and I are in the word problem crystal cave learning
00:10how to solve word problems. This part of the cave is dedicated to multiplication and division
00:15word problems. Come learn with us as we... Robot! Shhh! Uh-oh.
00:25Here comes a word problem we can take a look at. The problem says if Sally bakes three
00:31rows of five cookies then how many cookies did she bake? To solve this you can draw the
00:37rows of cookies. We know we have three rows so let's bring in three rows. We have three
00:45rows here we can put the cookies in. How many cookies does the problem say are in each row?
00:53There are five cookies in each row. Great job! You may have noticed that this is a multiplication
01:00problem. We have three rows with five cookies in each row. The multiplication problem is
01:06three times five equals blank or what we do not know. We can now solve the problem in
01:12a couple of ways. We can count the cookies. There are 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11,
01:2412, 13, 14, 15. She baked 15 cookies in all. Instead of counting each cookie we could also
01:33use our multiplication skills to know that three times five equals 15. Awesome! Let's
01:40look at another problem before I eat all these cookies. Robot. The new problem says
01:49Sam is baking 12 cookies. He puts them in two rows. How many cookies are in each row?
01:56Before we jump in let's not focus on if we are dividing or multiplying. We just want
02:00to first draw the problem. As you might have heard the cookies got eaten from the first
02:06problem. Thanks Mr. Robot. We don't need the cookies to draw this though. We can just
02:11use tally marks. We know there are 12 cookies in all and they are divided into two rows.
02:17So let's draw the two rows where the tally marks go. We are now going to put a tally
02:23in each row as we count to 12. 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12. We have placed
02:3812 tally marks in the two rows. How many are in each row? There are 6 tally marks. Great
02:46job! We solved the problem by just using the drawing. Let's write the equation that goes
02:52along with it. We started with 12 cookies and we essentially divided them into 2. Our
02:58equation is 12 cookies divided by 2 equals 6. Great job guys! That was amazing! The new
03:08problem says if there are 9 teams with 9 players on each team then how many players are there?
03:14We could start by making tally marks to help us solve this problem. We have 9 teams and
03:19each team has 9 players. We basically have 9 groups and we will put 9 tally marks in
03:27each box. Then we will count them all to see how many players there are. Wait a minute!
03:33This drawing will definitely work but it will take me forever. So let's look at the equation
03:38for this problem. We have 9 groups of 9. Do you think we are multiplying or dividing?
03:49We are multiplying. Great job! We now have our equation of 9 times 9 equals blank. Using
03:56your multiplication skills, what is 9 times 9? The answer is 81. There are 9 teams with
04:059 players on each team and the total amount of players is 81. Awesome job! That was not
04:12an easy one but we did it! Don't worry guys, it will take some time but we will get out
04:19eventually. Hey Mr. Robot, I could sure use your help. Please?