Multiplication and Properties of Numbers

This video tutorial by Gi covers the operation of multiplication, exploring its relation to concepts like addition of equal parts, combination, proportionality, and rectangular formation. It delves into the properties of multiplication, such as commutative and distributive properties, and demonstrates how to use algorithms for solving multiplication problems. The tutorial emphasizes the importance of understanding multiplication for future mathematical concepts.

If you have 5 boxes with 6 pens in each, how many pens do you have in total?

• 40

• 30

• 25

• 35

How would you represent the addition of three 104s using multiplication?

• 104 x 3

• 3 x 104

• None of the above

• Both A and B

A sandwich shop offers 3 types of sandwiches and 2 types of juices. How many different combinations can a customer choose?

• 3

• 5

• 6

• 8

If a person spends $70 on transport weekly, how much will they spend in 4 weeks?

• $140

• $350

• $210

• $280

How many chairs are there in a cinema with 3 rows and 8 columns?

• 16

• 24

• 40

• 32

What is the commutative property of multiplication?

• Multiplying by 0 gives 0

• Changing the order of factors changes the product

• Changing the order of factors does not change the product

• Multiplying by 1 gives the same number

What is the neutral element in multiplication?

• 0

• 2

• 10

• 1

What is the result of any number multiplied by 0?

• The number itself

• 1

• 0

• None of the above

Which property allows you to group numbers in different ways in multiplication?

• Neutral

• Commutative

• Associative

• Distributive

What is the distributive property of multiplication over addition?

• a + (b + c) = (a + b) + c

• a(b + c) = ab + ac

• a + b = b + a

• a(bc) = (ab)c