Mastering Multiplication through Repeated Addition

This video tutorial introduces multiplication as a faster alternative to repeated addition. It explains the symbols used in multiplication and how to interpret them as 'groups of'. The video provides examples of using repeated addition to solve multiplication problems and includes story problems to apply these concepts. The tutorial concludes with practice problems and a light-hearted joke.

What is the purpose of using multiplication over repeated addition?

• None of the above

• To increase the complexity of problems

• To simplify addition of similar numbers

• To make calculations slower

Tags

CCSS.3.OA.A.1

What does the symbol 'x' represent in multiplication?

• Subtraction

• An unknown variable

• Division

• Multiplication

Tags

CCSS.4.NF.B.4B

CCSS.4.NF.B.4C

In the equation '2 * 1', how many groups are there?

• Two groups

• Three groups

• Four groups

• One group

Tags

CCSS.2.OA.C.3

What is the result of '5 * 2' using repeated addition?

• 12

• 10

• 7

• 5

Tags

CCSS.3.OA.A.1

How many total objects are there in 'four groups of three'?

• Twelve

• Seven

• Fifteen

• Three

Tags

CCSS.2.OA.C.4

What is the total number of balls Lenny has if he puts four balls in each of his three toy boxes?

• 15

• 12

• 20

• 7

Tags

CCSS.2.OA.C.4

How many chocolates does Miss Sullivan have if each of her two boxes contains eight chocolates?

• 18

• 8

• 16

• 10

Tags

CCSS.2.OA.C.4

What is the result of '7 * 5' using repeated addition?

• 25

• 45

• 35

• 40

Tags

CCSS.3.OA.A.1

Calculate '5 * 4' using the concept of groups.

• 10

• 15

• 20

• 25

Tags

CCSS.3.OA.A.1

What is the total when five groups of 50 are added together?

• 150

• 300

• 100

• 250

Tags

CCSS.3.OA.A.3