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Contributor: Joanna D'Orazio Mignella. Lesson ID: 14185
Is dessert your favorite meal of the day? Cookies, donuts, pastries, and more—sweet treats are the best! Practice adding decimals while enjoying lots of scrumptious treats.
Cookies, donuts, pastries, and more—there are so many indulgent treats to choose from!
So, next time you're told there is no dessert, you can share this fun fact! You need dessert to clear the table!
A sweet dessert is the perfect treat after a savory meal!
Imagine you’re the owner of a delightful sweet treat shop. Your mission is to keep customers happy by managing all the treats, assigning tasks to your employees, and tracking sales.
First, determine how much sugar you need for your delicious creations. You require 15.65 pounds of white sugar and 23.47 pounds of brown sugar.
You can find out by adding these decimals together!
Adding decimals is just like adding whole numbers—the key is lining up the digits according to their place value.
Grab a piece of paper or a notebook to help you keep everything straight!
These decimals have a whole number, a decimal point, and a part of a whole. Each part of the decimal must be lined up with each other.
Now that the decimals are lined up, you can begin adding!
Start at the place value farthest right and add each column just like you would with whole numbers. If the sum exceeds 9, you’ll need to regroup, just like in regular addition.
Don’t forget to place the decimal point in the correct spot when you’re done!
After adding, you need 39.12 pounds of sugar. That’s a lot of sweet treats waiting to be made!
Next, determine how much you spent on the sugar. The white sugar costs $432.75, and the brown sugar is $516.85.
To calculate the total cost, line up each price by place value and start adding from the right.
Wow, that’s quite an investment in sugar! But don’t worry; it’ll be worth it for all those tasty treats!
Now, move on to the icing. You bought 3.40 pounds of vanilla icing and 5.65 pounds of chocolate icing.
As you line up the decimals, you’ll notice that the number of digits isn’t the same. Just add a 0 as a placeholder to help with the addition.
After adding, you discover you bought 9.05 pounds of icing. Yum!
Check out the video below for more decimal fun and to see how to use base ten blocks to add decimals.
Excellent!
Now, back to the sweet treat shop!
A lot of sweets are made with butter. You purchased 18.25 pounds of salted butter and 15.55 pounds of unsalted butter.
Add the decimals before checking your answer.
Great work!
Now, head to the Got It? section for more sweet treat decimal fun!
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