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### Course: 3rd grade (Eureka Math/EngageNY)>Unit 3

Lesson 1: Topic A: The properties of multiplication and division

# Unknowns with multiplication and division

Sal finds the missing number in multiplication and division equations. Created by Sal Khan.

## Want to join the conversation?

• I don’t know that when they give us each single problems,like the unknown number divided by 10 that give us 10, but they confused us by doing the unknown number is getting hard and tricky because they will get answer wrong when they put the unknown number.
• I did not understand a single thing in this question
• What is 1928x98? Hard right?
• 1928x98=188944.
• I got a question from khan Academy , why it important to do math if you don’t know the answer ,should we use the math video to help you out the answer.
• What is an equation?
• a sentence regarding math, asking a question involving numbers therefore a eqaution example would be 2x7
• why is 5th grade so hard it just gets harder and harder😥😦
• I am sure you will get through it because you are a smart and kind person! ^.^
• I don’t know what the unknown number is because is confusing me when they give me the unknown number math problems when they give a answer to the question.
• 6+6+6 6+6+6 6+6+6
24+24+6
48+6
= 54