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CCSS.MATH.CONTENT.2.NBT.B.7

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Mr. Squeaks and Imani are having a racing contest to see who can go faster around the track. Mr. Squeaks is adding his speeds together to see how fast he can go, but he needs a strategy- addition using expanded form and place value! Learn more below all about adding in expanded form.

What is expanded form addition? How do you use it in addition? There are many different strategies and tools to use to solve addition equations. One of those is using expanded form, when you write a number to show the value for each digit.

When using expanded form addition with tens and ones…

• Finally, add the tens and ones together one last time

Addition Using Expanded Form - Examples

You may be wondering how to do addition using expanded form… start by taking a look at the examples below and try to solve them using expanded form to add.

Mr. Squeaks and Imani are adding items together for a new project that they are building. If they have thirty-two small screws and forty-six big screws, how many screws do they have all together?

Mr. Squeaks and Imani will have seventy-eight screws all together.

Let’s take a look at one more example. Mr. Squeaks is adding together different ingredients for a salad that he is making. If he wants to add fifty-one sunflower seeds and forty-seven lemon seeds, how many seeds will he have all together?

Mr. Squeaks will have ninety-eight seeds for his salad!

Remember when adding using expanded form ...