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Shortcuts for the Nines
Pattern for the Nines
Can you see this pattern?
1x9 = 09
2x9=18
3 x9 = 27
4x9 = 36
5x9 =45
6x9 =54
7x9 == 63
8x9 =72
9x9 = 81
10x9 =90
The digit in the tens place of the
product is 1 less than the number multiplied
by 9. This number
plus the digit in the ones place
will always equal 9.
Finger 9'5 Method
_,
9
---=8
_
2
1x9 =9
L __ =6
3 x9 = 27
L __·=5
_
= 63
_
~
5 x9 = 45
4x9 =36
7 x9
7
8 x9
= 72
__
--'-4
_
6x9 = 54
9x9=81
10x9 = 90
Lesson 4: Multiply with 9
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