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Math for Kids23 chapters | 325 lessons

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Instructor:
*Audrey Akins*

Audrey has more than a decade of experience teaching elementary. She has a bachelor's in journalism and a master's in education.

Once you've learned to add, subtract, multiply, and divide, the next step is learning how to apply those skills when solving word problems. This lesson will teach you how to recognize some of the different types of word problems.

When solving any type of **word problem**, pay attention to the action in the problem. This will tell you whether or not you are joining things together, taking things apart, determining the total amount of things, or deciding how many of an item each person should get.

In some word problems, you'll know you're supposed to add because the action will indicate that two things are being joined together. For example, let's pretend it's your birthday. You get 3 lollipops from your mom, and then your grandma gives you 5 more lollipops. If you want to know how many you have in all, you add because you have to join the two groups of lollipops together to determine the total amount: 3 + 5 = 8. Some addition word problems also end with questions like: 1) How many in all? or 2) How many altogether?

Now let's look at what happens when you're subtracting. When you subtract, the action you need to pay attention to is taking things away from the group. Since it's your birthday, you've decided to have a party. Before the party starts, your mom makes 10 hot dogs. During the party, your friends eat 7 hot dogs. In order to solve this problem, you'd subtract because you're taking 7 hot dogs away from the group of 10 that you started with: 10 - 7 = 3.

Another way to determine if you'll have to subtract is if there is a missing part. Let's say you begin the party with 18 balloons and end the party with 6. The number of balloons that are gone is the missing part. If you have to subtract, that can tell you how many balloons your friends took home: 18 - 6 = 12, so 12 balloons are gone.

While at your party, you notice that 5 of the boys have two cups of juice each. To determine how many cups of juice they had all together without performing repeated addition, you would multiply the number of boys by the number of cups: 5 x 2 = 10. This is a lot faster than adding: 2 + 2 + 2 + 2 + 2 = 10.

After each of the 7 kids at your party had a turn to hit the piñata, there were 35 pieces of candy on the floor. If you want to know how many each person gets, you have to divide. When solving word problems, you'll know to divide if the action requires you to share equally or asks how much of an item each person should each get. In this case, 35 / 7 = 5.

The next time you have to solve **word problems**, remember to pay attention to the action in the problem. Addition problems will always require you to join groups together, while subtraction word problems will always require you to take groups apart. If there is a missing part, you also should subtract. Multiply whenever you have to perform repeated addition, and divide when you have to share equally.

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48 in chapter 4 of the course:

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Math for Kids23 chapters | 325 lessons

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