Word Problems: Part-Whole

Farmer Joe planted6 tomatoes.Farmer Benplanted 13tomatoes. How many tomatoes did Farmer Joe and Farmer Ben plantaltogether?

This is called a **Part-Whole Word Problem**.

When you're given **two parts,** you need to **find the whole.**

To do this, youadd the parts together.

When you're given **one part and the whole,** you need to **find the missing part**.

To do this, you have tosubtract the given part from the whole.

😀 Tip: It can be tricky solving problems like this.

So, you really need to read the clues well. 😌

Let's give it a try.

**Step 1.** ** Gather clues.**

We have two parts, but no whole.

We need to find the whole.

**Step 2.** ** Draw a picture, or a part-whole diagram.**

How do we figure out the whole?

That's right!

👉 We need to **add the two parts together.**

**Step 3.** ** Write an equation.**

6 + 13 = 19

**Step 4.** ** Write the answer in a word sentence.**

Farmer Joe and Farmer Ben planted 19 tomatoes altogether.

How about we try another problem?

Sarah baked18 cupcakes.10were chocolate. The rest were vanilla. How many vanilla cupcakes did Sarah bake?

**Step 1. ****Gather clues.**

We see that we have a whole.

We also have one part.

**Step 2.** ** Draw a picture, or a part-whole diagram.**

Based on our picture, what should we do?

That's right! We need to find the missing part.

👉 We **subtract the given part from the whole.**

**Step 3.** ** Write an equation.**

18 - 10 = 8

**Step 4.** ** Write a word sentence.**

Sarah baked 8 vanilla cupcakes.

Great work! 👏

Now, you can move on to practice! 💪

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