Introduction of multiplication

1. Multiplication
Created By
Kinjal H. Shah

2. Introduction
What is Multiplication
 Multiplication is nothing but a shortcut for
addition.
 An equation that tells us how many times to
add a number with itself

4. Explanation With Example

6. Key Words
 Multiplier: the number or numbers being
multiplied Product: the answer
 Multiplication Signs: x * ∙
 Example: 2 x 3 = 6
2 and 3 are both multipliers and 6 is the
product.

7. Example
 What is 5 x 2 ?
 This equation is telling us to add 5 with itself two
times.
 5 + 5 = 10
 So 5 x 2 = 10
 5 x 2 is the same problem as 2 x 5.
 We would now be adding 2 with itself 5 times
 2 + 2+ 2+ 2+ 2= 10
So 5 x 2 = 10

8. Multiply by 1
 Any number multiplied by one is the same
number
 Why???
 That number is only being added once so it
stays the same.
 3 x 1= ?
 We are adding 3 only 1 time

9. Multiply by 1
 Any number multiplied by one is the same
number
 Why???
 That number is only being added once so it
stays the same.
 3 x 1= ?
 We are adding 3 only 1 time
 So.....
 3 + Nothing Else = 3

10. Multiply by 1
 3 + Nothing Else = 3
 Meaning that 3 x 1 = 3
 This works with any number!
 LIKE… 200 x 1 = 200 Because 200 + nothing
else = 200 Or 1,000,000 x 1 = 1,000,000
 This works in reverse too
 1 x 3 for example 1 +1 +1 =3
 So 1 x 3 = 3

11. Rule for 0
 Any number multiplied by zero will equal zero
 WHY???
 You aren’t multiplying the number by anything
 7 x 0 = 0
 0 x 4 = 0
 1 x 0 = 0
 255 x 0 = 0
 Any number x 0 = 0