Examples relating multiplication to division | 3rd grade | Khan Academy

TL;DR

Learn how to think about division problems as multiplication problems and vice versa.

Transcript

• [Voiceover] Let's say someone walks up to you on the street and says to you, 50 divided by five, 50 divided by five is equal to blank, is equal to blank. How can you think about this as a multiplication problem? Well, whatever blank is, whatever blank is, if you multiply it by five, if you multiply by five, you should get 50. You should get 50. Y... Read More

Key Insights

• 🤔 Division problems can be solved by thinking about multiplication and vice versa.
• ✖️ Multiplication and division have a reciprocal relationship.
• ➗ Finding the unknown value in division is equivalent to multiplying.
• ➗ Multiplying is equivalent to finding the unknown value in division.
• 👥 Division can be understood as sharing or grouping equally.
• 🤔 Multiplication can be thought of as repeated addition.
• ✖️ Recognizing the relationship between multiplication and division helps in problem-solving.

Questions & Answers

Q: How can I think about division problems as multiplication problems?

To think about division as multiplication, ask yourself "what times the divisor equals the dividend?" The result will give you the unknown value being divided.

Q: How do I find the unknown value in a division problem?

Multiply the divisor by the known value to find the unknown value being divided.

Q: Can multiplication problems be understood as division problems?

Yes, by finding the unknown value in a multiplication problem, you can think of it as division. Simply divide the known value by the multiplier to find the unknown value.

Q: How can I find the unknown value in a multiplication problem?

Divide the known value by the multiplier to find the unknown value being divided.

Summary & Key Takeaways

• Division problems can be thought of as multiplication problems where the unknown value is being divided.

• To find the unknown value in a division problem, you can multiply the known value by the divisor.

• Similarly, multiplication problems can be understood as division problems by finding the unknown value being divided.