Let’s Learn!

Think About It!

Goal: Calculate coin combinations in money problems.

Get your flight suit ready. Sully the Stork will take us on many different flights today! First, we need to learn different combinations of coins to take a flight. Let’s review how to count coins to help us solve money problems!

Click on the flip box to count the values of the coins.

Let’s solve word problems about coin combinations so that Sully the Stork can take us on his flights!

Here are the steps to help us solve word problems! As you click through the slide show, click the Show Me button to show you how to use the steps to solve the word problem.

Slide: 1 / 5

Sully the Stork wants to fly in a hot-air balloon. It costs 44¢. What coins can we use to make 44¢? There are many combinations!

Let’s follow the steps to solve money word problems.

Step One: Read It

What is the problem about?

Show Me

Sully the Stork is taking a hot-air balloon flight. To go on the flight, he needs 44 cents. We need to find a combination of coins equal to 44 cents.

Step Two: Reread It

What is the problem asking? Underline the question.

Show Me

Sully the Stork wants to fly in a hot-air balloon. It costs 44¢. What coins can we use to make 44¢? There are many combinations!

Step Three: Plan It

How can I solve this problem?

We can plan by circling key words and highlighting numbers!

Show Me

Sully the Stork wants to fly in a hot-air balloon. It costs 44¢. What coins can we use to make 44¢? There are many combinations!

Step Four: Solve It

Think! Do I add or subtract? Write the number sentence. Find the answer.

Show Me

If we start with the largest coin values, we can find our answer quickly.

We need 44¢, so we can use at least 1 quarter and then count up.

Two quarters are equal to 50¢, which is too much. If we add a dime, we get 25¢ + 10¢ = 35¢.

Adding another dime will give us 45¢, which is too much.

Next, add a nickel, so 25¢ + 10¢ + 5¢ = 40¢. If we add another nickel, it will be too much.

Finally, we can add pennies one at a time until we have 44¢.

25¢ + 10¢ + 5¢ + 1¢ + 1¢ + 1¢ + 1¢ = 44¢.

You got it!

Step Five: Check It

Does the answer make sense? Check your answer.

Show Me

Yes, this makes sense! Our coins add up to 44¢!
You can count up like this: 25¢, 35¢, 40¢, 41¢, 42¢, 43¢, 44¢.

Wait a minute! Sully the Stork wants to remind us that there are many different combinations of coins we can use to get 44¢ for the hot-air balloon flight!

Let’s look at other combinations of coins that equal 44¢.

Click on the tabs to see the different combinations of 44¢!

Add the value of the coins: 40¢ + 4¢ = 44¢.
Count up: 10¢, 20¢, 30¢, 40¢, 41¢, 42¢, 43¢, 44¢.

Add the value of the coins: 30¢ + 10¢ + 4¢ = 44¢.
Count up: 10¢, 20¢, 30¢, 35¢, 40¢, 41¢, 42¢, 43¢, 44¢.

Add the value of the coins: 20¢ + 20¢ + 4¢ = 44¢.
Count up: 10¢, 20¢, 25¢, 30¢, 35¢, 40¢, 41¢, 42¢, 43¢, 44¢.

Add the value of the coins: 10¢ + 30¢ + 4¢ = 44¢.
Count up: 10¢, 15¢, 20¢, 25¢, 30¢, 35¢, 40¢, 41¢, 42¢, 43¢, 44¢.

Wow, that is a lot of coin combinations for 44¢! Now, what if Sully the Stork had $1. If he took the hot-air balloon flight for 44¢, what would be his change?

Sully the Stork has taught us so much about coin combinations! Let’s follow him to the air show to solve some more money problems!