5 x 7 = 35 2 x 5 = 10 6 x 2 = 12 Multiplication Facts By: Mushooda Mehmood ECE 8814 / 01

Contents QCC Standards Zero’s Pattern One’s Pattern Two’s Pattern Five’s Pattern Ten’s Pattern Real Life Applications – Build a Garden External Links Scanned Picture

QCC Standards Standard 43 Standard 42 Standard 45

Multiplication Facts are easiest to learn when... You can find patterns. You can use songs. You can use stories. You can relate them to what you already know.

Zero’s Pattern 0 times any number is 0 0 x 2 = 0 0 x 3 = 0 0 x 8 = 0 0 x 1 = 0 0 x 0 = 0 0 x 4 = 0

What is 0 x 9 =

One’s Pattern 1 times any number is equal to the number 1 x 5 = 5 1 x 7 = 7 1 x 6 = 6 1 x 1 = 1 1 x 8 = 8 1 x 9 = 9

What is 1 x 5 = 5

Two’s Pattern Multiplying any number by 2 is the same as doubling the number. 2 x 3 = 6 2 x 7 = 14 2 x 4 = 8 2 x 1 = 2 2 x 2 = 4 2 x 9 = 18

What is 2 x 5 = 10

Five’s Pattern Step 1 Cut the number you are multiplying in half 5 x 3 = 1.5 5 x 7 = 3.5 5 x 8 = 4 5 x 1 = .5 5 x 2 = 1 5 x 6 = 3

Five’s Pattern Step 2 If you are multiplying an odd number, drop the decimal point 1 . 5 5 x 3 = 5 x 7 = 5 x 5 = 5 x 1 = 5 x 9 = . 3 5 2 . 5 . 5 4 . 5

What is 5 x 7 = 3 5

What is 5 x 3 = 1 5

What is 5 x 9 = 4 5

What is 5 x 5 = 2 5

Five’s Pattern Step 3 If you are multiplying an even number, just add a zero 5 x 2 = 5 x 6 = 5 x 4 = 5 x 8 = 5 x 10 = 1 3 2 4 5

What is 5 x 8 = 4

What is 5 x 6 = 3

What is 5 x 4 = 2

What is 5 x 2 = 1

Nine’s Pattern Step 1 Subtract 1 from number you are multiplying 9 x 3 = 2 9 x 7 = 6 9 x 8 = 7 9 x 1 = 0 9 x 2 = 1 9 x 6 = 5

Nine’s Pattern Step 2 Add a 2nd number that totals nine with the 1st number + 7 9 9 x 3 = 2 9 x 7 = 6 9 x 8 = 7 9 x 1 = 0 9 x 2 = 1 9 x 6 = 5 = 9 x 3 = 27 9 x 7 = 63 9 x 8 = 72 9 x 1 = 9 9 x 2 = 18 9 x 6 = 54 + 3 9 = 2 9 + = 9 9 + = 8 9 + = 4 + 9 =

What is 9 x 7 = 6 3

What is 9 x 8 = 7 2

What is 9 x 9 = 8 1

What is 9 x 6 = 5 4

What is 9 x 5 = 4 5

What is 9 x 3 = 2 7

What is 9 x 4 = 3 6

What is 9 x 2 = 1 8

Ten’s Pattern Add a zero to the number that you are multiplying by ten 20 10 x 2 = 10 x 4 = 10 x 6 = 10 x 8 = 40 60 80

What is 10 x 6 = 6

What is 10 x 2 = 2

Real Life Applications Congratulations!!!

You have been selected to build a Garden!

The town council of Stone Mountain decides to beautify the town. They build square flower beds of different sizes and surround them with square tiles. Take a look.

1 by 1 bed 2 by 2 bed 3 by 3 bed

What is the area of the 1 by 1 bed excluding the tiles? What is the area of the 1 by 1 bed including the tiles? 3 x 3 = 9

2 x 2 = 4 4 x 4 = 16 Similarly, work out: ….the area of the 2 by 2 bed excluding the tiles. 2 x 2 = 4 …the area of the 2 by 2 bed including the tiles. 4 x 4 = 16

3 x 3 = 9 5 x 5 = 25 Now, the 3 by 3 flower bed…. … area excluding the tiles… ? 3 x 3 = 9 … area including the tiles… ? 5 x 5 = 25

Represent your answers by using a bar graph.

Represent your answers by using a pie chart.

Let's summarize Flower bed 1 x 1 3 x 3 2 x 2 4 x 4 3 x 3 5 x 5 ? x ? Flower bed with tiles Let's summarize Interesting Pattern!

External links Video Clip: Multiplication of signed numbers Multiplication Worksheets Multiplication Practice

Shouldn’t you be doing your homework!!??!! UH!! Shouldn’t you be doing your homework!!??!! Fun Stuff !! Practice the Times Tables Interactive Flash Cards - Play by yourself or with a partner.  Hidden Picture Solve the multiplication problems to reveal a hidden picture.

Relates concrete and pictorial models to multiplication and division. Standard 43 Relates concrete and pictorial models to multiplication and division.

Determines basic multiplication facts through 9 x 9. Standard 45 Determines basic multiplication facts through 9 x 9.

Multiplies whole numbers by one digit numbers. Standard 42 Multiplies whole numbers by one digit numbers.