ClassX Video Lessons Adding and Subtracting | Learn the basics of Addition and Subtraction and Keywords to look for
Hey there! Today, we’re going to have some fun learning how to add and subtract money using word problems. Let’s dive in!
When we add things together, we use the addition sign. This helps us find out how much we have in total. For example, if you have a bag of candy and share it with a friend, you might count your candies to see how many you have altogether. That’s addition!
Imagine you have $1.12 and you find another $3.06. If you add them together, you get $4.18. That’s how addition works with money!
Subtraction is the opposite of addition. It means taking something away. If you have $5.67 and spend $2.42, you subtract to find out how much money you have left. In this case, you would have $3.25 left.
Think about when you pay for something and get change back. That’s subtraction in action!
Money word problems are like little stories that help us practice math with real-life examples. They teach us how to use addition and subtraction in everyday situations, like buying treats or sharing with friends.
When solving these problems, look for clues. Words like “total,” “add,” and “combine” mean you should add. Words like “difference,” “left,” and “take away” mean you should subtract.
Here’s a fun problem: If you buy markers for $3.22 and colored pencils for $5.34, what is the total cost? You add them together to find out!
Now, if you have $5.34 and want to buy markers for $3.22, how much money will you have left? This time, you subtract.
Remember to line up the numbers correctly, just like stacking blocks. This helps you get the right answer!
Great job learning how to add and subtract money! Think about other times you might use this, like at the grocery store or when buying a movie ticket. Keep practicing, and soon you’ll be a money math whiz!
Thanks for learning with us! Keep exploring and having fun with math!
Money Jar Game: Create a “money jar” using a small container. Collect different coins and small bills (or use play money). Each day, add or subtract different amounts from your jar. For example, pretend you bought a toy for $1.50 and need to subtract that amount. Keep track of how much money is in your jar each day. This will help you practice adding and subtracting money in a fun way!
Shopping List Adventure: Make a pretend shopping list with items and their prices. Use a toy cash register or a calculator to add up the total cost of your shopping list. Then, pretend you have a certain amount of money to spend. Subtract the total cost from your money to see how much you have left. Can you buy everything on your list, or do you need to make choices?
Money Detective: Go on a “money detective” hunt around your house. Look for price tags on items or receipts. Try to find at least three items and write down their prices. Add the prices together to find the total cost. Then, imagine you have a certain amount of money and subtract the total cost to see how much money you would have left. This helps you see how addition and subtraction are used in real life!
Sure! Here’s a sanitized version of the provided YouTube transcript, with unnecessary repetitions and filler words removed for clarity:
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In this lesson, we will learn how to add and subtract money using word problems.
The addition sign is used when we add things together. When you see the word “addition” or the addition sign in a math problem, it means we are trying to find the total or how many we have altogether. You can add two numbers, three numbers, four numbers, and more. This process is often referred to as finding the sum or total.
Have you ever opened a bag of candy and divided it evenly between you and a friend? After dividing, you might count your piles to ensure you both have the same number. When you count those candies, you are doing addition to find out how many you have in total.
Now, what if you found out you had two more candies than your friend? You would likely want to make it fair by taking away one of your candies and giving it to your friend. Just as there is a word for adding things together, there is also a word for taking something away: subtraction. Subtraction is the opposite of addition; it means we are taking numbers away. Other ways to say subtraction include “how many fewer,” “how many are left,” or “what is the difference.”
Have you ever paid for something with cash and received change back? That change is the leftover money after subtracting the amount owed for the items purchased. When you go to the store to buy a treat, you first need to add up all your money to find the total amount you have. Then, you would subtract the price of the treat from your total to see if you have enough money to buy it.
Imagine you and your friend are at the store wanting to buy M&Ms. If you have money but your friend doesn’t, after buying one bag, you might check your change to see if you can buy your friend a package too. Figuring out the change involves subtraction, while buying an extra package of M&Ms involves addition.
You will often add and subtract in life, so you will have many chances to practice. You might be familiar with simple addition or subtraction problems, such as 1 + 1 = 2 or 1 – 1 = 0. But have you seen a math problem using money? For example, $1.12 + $3.06 = $4.18.
Money word problems are story problems that involve money and give you real-life examples, like figuring out if you and your friend have enough money to buy treats. The purpose of these problems is to prepare you for real-life math situations.
To solve money word problems, look for keywords that indicate whether to use addition or subtraction. Some keywords for addition include “total,” “both,” “all,” “add,” “increase,” and “combine.” For subtraction, look for “decrease,” “fewer,” “difference,” “less than,” “remain,” “minus,” “take away,” and “left.”
When writing a money word problem, it’s important to line up the numbers correctly. For example, $1.12 + $3.06 = $4.18. Always start with the numbers in the right-hand column to account for any leftover numbers that need to be added to the next column.
Now, let’s add the numbers: 6 + 2 = 8. Place the 8 underneath the line. Next, 0 + 1 = 1, and place the 1 underneath the line. Then, place the decimal point under the decimal points above it. Finally, 1 + 3 = 4. Add the dollar sign, and you have your answer: $4.18.
If you were buying a candy bar for $1.12 and a toy for $3.06, the total amount would be $4.18.
Subtracting works similarly. For example, $5.67 – $2.42 = $3.25. Start with the column on the right side of the decimal point: 7 – 2 = 5, 6 – 4 = 2, and 5 – 2 = 3. Don’t forget to add your dollar sign, so the answer is $3.25.
Now, let’s try a money word problem on your own. If you buy markers for $3.22 and colored pencils for $5.34, what is the total cost? Since we want to know the total amount, we will add these amounts together.
Alternatively, if you have $5.34 and want to buy markers for $3.22, how much money will you have left? This time, you will subtract.
Always line up the numbers correctly, putting the larger amount on top. After subtracting, you should find that you have $2.12 left.
Great job learning how to add and subtract money word problems! Think of other situations where you might need to add or subtract money, like at a grocery store, movie theater, or vending machine. Keep practicing, and soon you’ll be able to do some calculations in your head!
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This version maintains the educational content while removing unnecessary filler and repetitions for clarity.
