Multiplication W Sound

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Multiplication By Katie McColly

description

A powerpoint teaching the beginning steps of multiplication

Transcript of Multiplication W Sound

  • 1. Multiplication
    By Katie McColly

2. Key Terms
Multiplier: the number or numbers being multiplied
Product: the answer
Multiplication Signs: x*
Example: 2 x 3 = 6
2 and 3 are bothmultipliers and 6 is the product
3. 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. Example #1
What is 5 x 2 ?
This equation is telling us to add 5with itselftwo times
5 + 5 = 10
So 5 x 2 = 10
5. 5 x 2 is the same problem as 2 x 5
We would now be adding 2 with itself 5 times!
6. 2
+ 2
+ 2
+ 2
+ 2
= 10
7. So 5 x 2 = 10
8. Multiplying by 1
Any number multiplied by one is the same number
Why???
That number is only being added once so it stays the same
9. For Example
3 x 1= ?
We are adding 3 only 1 time
10. So
.
.
.
.
.
11. 3
+
Nothing Else
= 3
12. 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
13. This works in reverse too
1 x 3 for example
1
+1
+1
=3
So 1 x 3 = 3
14. The Zero Rule
Any number multiplied by zero will equal zero
WHY???
You arent multiplying the number by anything
15. Examples
7 x 0 = 0
0 x 4 = 0
1 x 0 = 0
255 x 0 = 0
Any number x 0 = 0
16. THE END