The 9
×
table
1
2
3
4
5
6
7
8
9
10
×
×
×
×
×
×
×
×
×
×
9
9
9
9
9
9
9
9
9
9
=
=
=
=
=
=
=
=
=
=
9
18
27
36
45
54
63
72
81
90
Have a look at these timesavers.
Look at the numbers on the right-hand side of the table above. Notice how the
tens go up
but the
units go down
.
There’s a good way to remember this table. All the digits in the 9 × table add up to 9.
18 = 1 + 8 =
9
27 = 2 + 7 =
9
36 = 3 + 6 =
9
What’s
9 ×
7
? You can use the
9 method
here.
Hold out all 10 fingers and lower or bend the
7th
finger.
There are 6 fingers to the left (6 tens) of the bent
finger and 3 fingers to its right (3 units). The answer
is 63.
Try reversing the order if you’re having problems. 9 × 8 is the same as 8 × 9 (= 72) so you can
use the 8 × table if you know it better.
Look at the pattern to the right: the units’ column goes
down
one at a time and the tens column goes
up
.
You can also see how the 9 × table reverses itself!
(1 × 9) 09 ~ 90 (10 × 9)
(2 × 9) 18 ~ 81
(9 × 9)
(3 × 9) 27 ~ 72
(8 × 9)
(4 × 9) 36 ~ 63
(7 × 9)
(5 × 9) 45 ~ 54
(6 × 9)
(6 × 9) 54 ~ 45
(5 × 9)
(7 × 9) 63 ~ 36
(4 × 9)
(8 × 9) 72 ~ 27
(3 × 9)
(9 × 9) 81 ~ 18
(2 × 9)
(10 × 9) 90 ~ 09
(1 × 9)