Problem Solving
How do you use what you have learned to problem solve?
Goal:
Goal:
Practice!
Goal: Apply what you have learned about the commutative property to solve a multiplication word problem.
Can you use the commutative property to solve a word problem? You will need a piece of lined paper. Follow the problem-solving steps to find the answer. Then, click the tabs to see how!
All of the third grade classes are buying tickets together. There are 7 classes with 9 students in each class. All students get 1 meal ticket. How many meal tickets do all of the classes need in all?
Word Problem Solving Steps
- Read the problem.
- Look for important information.
- Write a math sentence.
- Choose a way to solve.
- Solve and label your answer.
Read the Problem
All of the third grade classes are buying tickets together. There are 7 classes with 9 students in each class. All students get 1 meal ticket. How many meal tickets do all of the classes need in all?
The first step is to read. Write down the problem. Then read the problem again! It is helpful to read the problem as many times as you need to in order to see all of the important information!
Find the Important Information
All of the third grade classes are buying tickets together. There are 7 classes with 9 students in each class. All students get 1 meal ticket. How many meal tickets do all of the classes need in all?
Now look for the important information. Highlight any important numbers, and circle helpful key words. It also helps to underline the question. Click the Show Me button to see!
All of the third grade classes are buying tickets together. There are 7 classes with 9 students in each class. All students get 1 meal ticket. How many meal tickets do all of the classes need in all.
7 is highlighted in red, 9 is highlighted in yellow, in all is circled.
7 and 9 are the important numbers. The key words “each” and “in all” tell you to multiply. The question is the last sentence in the problem. It asks how many meal tickets the classes need in all.
Write an Equation
All of the third grade classes are buying tickets together. There are 7 classes with 9 students in each class. All students get 1 meal ticket. How many meal tickets do all of the classes need in all.
7 is highlighted in red, 9 is highlighted in yellow, in all is circled.
7 and 9 are the important numbers. You need to multiply them. Write a multiplication equation underneath the word problem on your paper. Click the Show Me button to see how you did!
\({7 \times 9 = ?}\)
Choose a Way to Solve
All of the third grade classes are buying tickets together. There are 7 classes with 9 students in each class. All students get 1 meal ticket. How many meal tickets do all of the classes need in all.
7 is highlighted in red, 9 is highlighted in yellow, in all is circled.
\({9 \times 7 = 63}\)
\({7 \times 9 = ?}\)
Caleb says he knows that 9 times 7 equals 63. Use the commutative property to find the product. Click the Show Me button to check your work!
\({9 \times 7 = 63}\)
\({7 \times 9 = 63}\)
Solve and Label Your Answer
All of the third grade classes are buying tickets together. There are 7 classes with 9 students in each class. All students get 1 meal ticket. How many meal tickets do all of the classes need in all.
7 is highlighted in red, 9 is highlighted in yellow, in all is circled.
\({9 \times 7 = 63}\)
\({7 \times 9 = 63}\)
Draw a 7-by-9 array using the lines on your paper. Draw it below your multiplication sentence. Then, count the shapes you drew. Click the Show Me button to check your work!
Write the correct product with the label word that answers the question. Write it below your array.
Question
How many tickets do all of the classes need in all?
The classes need 63 tickets.
Now use the steps to try this out on your own!
Read and Solve
Read the word problem below. Use the commutative property to find the answer. Then, draw an array to check your work. Choose the correct answer with the correct label word.
The whole school wants to visit Adventure Land together! The school needs 10 groups of 8 tickets. How many tickets does the school need to go to Adventure Land?
\({8 \times 10 = 80}\)
\({10 \times 8 = ?}\)
Tickets
Tickets
Classes
Use the product of the first multiplication sentence to solve the second equation. Check your work with a 10-by-8 array. Then, choose the correct answer with the correct label word.
Correct! Using the product of the first multiplication sentence to solve the problem and checking it using an array was a great way to solve the equation!
Use the product of the first multiplication sentence to solve the second equation. Check your work with a 10-by-8 array. Then, choose the correct answer with the correct label word.
You got # out of # correct. Click the Retry button for another attempt.
You got a perfect score. Great job!