#### Transcript MathOnMonday® Presents: Building Math Courage® A program designed for Adults or Kids who have struggled to learn their Math in the traditional classroom! Lesson 20.9 Learning Your Nines Dirk.

Slide 1

MathOnMonday®
Presents:

Building Math Courage®
A program designed for Adults or
Kids who have struggled to learn
classroom!
Lesson 20.9
Dirk M. Horton
[email protected]

10’s Digit of Product
1’s Digit of Product
Multiply by

the relationship between
the “multiply by” and the
“10’s digit” of the product.
The 10’s digit of the product
Is 1 less than the “multiply by”.

the relationship
between the “10’s Digit”
and the “1’s digit of the
product.
The 1’s Digit + the 10’s digit
of the product always = 9.

-1

9x2=
9x3=
9x4=
9x5=
9x6=
9x7=
9x8=
9x9=
-1

18
27
36
45
54
63
72
81

1+8=9
2+7=9
3+6=9
4+5=9
5+4=9

6+3=9
7+2=9
8+1=9

Click your mouse to see that you learned your 9s. Click for the
the 1’s digit, click again and see the result.

9 x 9 = 81

9 x 3 = 27

9 x 5 = 45
9 x 4 = 36
9 x 2 = 18
9 x 6 = 54
9 x 8 = 72

9 x 7 = 63

One More Time!
Click your mouse to see that you learned your 9s. Click for the
the 1’s digit, click again and see the result.

9 x 9 = 81

9 x 3 = 27

9 x 5 = 45
9 x 4 = 36
9 x 2 = 18
9 x 6 = 54
9 x 8 = 72

9 x 7 = 63

Well done you are learning your nines! Practice a
few times and you be a nines expert!

9 x 9 = 81

9 x 3 = 27

9 x 5 = 45
9 x 4 = 36
9 x 2 = 18
9 x 6 = 54
9 x 8 = 72

9 x 7 = 63

Slide 2

MathOnMonday®
Presents:

Building Math Courage®
A program designed for Adults or
Kids who have struggled to learn
classroom!
Lesson 20.9
Dirk M. Horton
[email protected]

10’s Digit of Product
1’s Digit of Product
Multiply by

the relationship between
the “multiply by” and the
“10’s digit” of the product.
The 10’s digit of the product
Is 1 less than the “multiply by”.

the relationship
between the “10’s Digit”
and the “1’s digit of the
product.
The 1’s Digit + the 10’s digit
of the product always = 9.

-1

9x2=
9x3=
9x4=
9x5=
9x6=
9x7=
9x8=
9x9=
-1

18
27
36
45
54
63
72
81

1+8=9
2+7=9
3+6=9
4+5=9
5+4=9

6+3=9
7+2=9
8+1=9

Click your mouse to see that you learned your 9s. Click for the
the 1’s digit, click again and see the result.

9 x 9 = 81

9 x 3 = 27

9 x 5 = 45
9 x 4 = 36
9 x 2 = 18
9 x 6 = 54
9 x 8 = 72

9 x 7 = 63

One More Time!
Click your mouse to see that you learned your 9s. Click for the
the 1’s digit, click again and see the result.

9 x 9 = 81

9 x 3 = 27

9 x 5 = 45
9 x 4 = 36
9 x 2 = 18
9 x 6 = 54
9 x 8 = 72

9 x 7 = 63

Well done you are learning your nines! Practice a
few times and you be a nines expert!

9 x 9 = 81

9 x 3 = 27

9 x 5 = 45
9 x 4 = 36
9 x 2 = 18
9 x 6 = 54
9 x 8 = 72

9 x 7 = 63

Slide 3

MathOnMonday®
Presents:

Building Math Courage®
A program designed for Adults or
Kids who have struggled to learn
classroom!
Lesson 20.9
Dirk M. Horton
[email protected]

10’s Digit of Product
1’s Digit of Product
Multiply by

the relationship between
the “multiply by” and the
“10’s digit” of the product.
The 10’s digit of the product
Is 1 less than the “multiply by”.

the relationship
between the “10’s Digit”
and the “1’s digit of the
product.
The 1’s Digit + the 10’s digit
of the product always = 9.

-1

9x2=
9x3=
9x4=
9x5=
9x6=
9x7=
9x8=
9x9=
-1

18
27
36
45
54
63
72
81

1+8=9
2+7=9
3+6=9
4+5=9
5+4=9

6+3=9
7+2=9
8+1=9

Click your mouse to see that you learned your 9s. Click for the
the 1’s digit, click again and see the result.

9 x 9 = 81

9 x 3 = 27

9 x 5 = 45
9 x 4 = 36
9 x 2 = 18
9 x 6 = 54
9 x 8 = 72

9 x 7 = 63

One More Time!
Click your mouse to see that you learned your 9s. Click for the
the 1’s digit, click again and see the result.

9 x 9 = 81

9 x 3 = 27

9 x 5 = 45
9 x 4 = 36
9 x 2 = 18
9 x 6 = 54
9 x 8 = 72

9 x 7 = 63

Well done you are learning your nines! Practice a
few times and you be a nines expert!

9 x 9 = 81

9 x 3 = 27

9 x 5 = 45
9 x 4 = 36
9 x 2 = 18
9 x 6 = 54
9 x 8 = 72

9 x 7 = 63

Slide 4

MathOnMonday®
Presents:

Building Math Courage®
A program designed for Adults or
Kids who have struggled to learn
classroom!
Lesson 20.9
Dirk M. Horton
[email protected]

10’s Digit of Product
1’s Digit of Product
Multiply by

the relationship between
the “multiply by” and the
“10’s digit” of the product.
The 10’s digit of the product
Is 1 less than the “multiply by”.

the relationship
between the “10’s Digit”
and the “1’s digit of the
product.
The 1’s Digit + the 10’s digit
of the product always = 9.

-1

9x2=
9x3=
9x4=
9x5=
9x6=
9x7=
9x8=
9x9=
-1

18
27
36
45
54
63
72
81

1+8=9
2+7=9
3+6=9
4+5=9
5+4=9

6+3=9
7+2=9
8+1=9

Click your mouse to see that you learned your 9s. Click for the
the 1’s digit, click again and see the result.

9 x 9 = 81

9 x 3 = 27

9 x 5 = 45
9 x 4 = 36
9 x 2 = 18
9 x 6 = 54
9 x 8 = 72

9 x 7 = 63

One More Time!
Click your mouse to see that you learned your 9s. Click for the
the 1’s digit, click again and see the result.

9 x 9 = 81

9 x 3 = 27

9 x 5 = 45
9 x 4 = 36
9 x 2 = 18
9 x 6 = 54
9 x 8 = 72

9 x 7 = 63

Well done you are learning your nines! Practice a
few times and you be a nines expert!

9 x 9 = 81

9 x 3 = 27

9 x 5 = 45
9 x 4 = 36
9 x 2 = 18
9 x 6 = 54
9 x 8 = 72

9 x 7 = 63

Slide 5

MathOnMonday®
Presents:

Building Math Courage®
A program designed for Adults or
Kids who have struggled to learn
classroom!
Lesson 20.9
Dirk M. Horton
[email protected]

10’s Digit of Product
1’s Digit of Product
Multiply by

the relationship between
the “multiply by” and the
“10’s digit” of the product.
The 10’s digit of the product
Is 1 less than the “multiply by”.

the relationship
between the “10’s Digit”
and the “1’s digit of the
product.
The 1’s Digit + the 10’s digit
of the product always = 9.

-1

9x2=
9x3=
9x4=
9x5=
9x6=
9x7=
9x8=
9x9=
-1

18
27
36
45
54
63
72
81

1+8=9
2+7=9
3+6=9
4+5=9
5+4=9

6+3=9
7+2=9
8+1=9

Click your mouse to see that you learned your 9s. Click for the
the 1’s digit, click again and see the result.

9 x 9 = 81

9 x 3 = 27

9 x 5 = 45
9 x 4 = 36
9 x 2 = 18
9 x 6 = 54
9 x 8 = 72

9 x 7 = 63

One More Time!
Click your mouse to see that you learned your 9s. Click for the
the 1’s digit, click again and see the result.

9 x 9 = 81

9 x 3 = 27

9 x 5 = 45
9 x 4 = 36
9 x 2 = 18
9 x 6 = 54
9 x 8 = 72

9 x 7 = 63

Well done you are learning your nines! Practice a
few times and you be a nines expert!

9 x 9 = 81

9 x 3 = 27

9 x 5 = 45
9 x 4 = 36
9 x 2 = 18
9 x 6 = 54
9 x 8 = 72