look at the table of 9s facts. Is there another number pattern in the multiples of 9? Explain
What is another pattern of nine
To identify whether there is another number pattern in the multiples of 9, let's take a look at the table of 9s facts:
1 x 9 = 9
2 x 9 = 18
3 x 9 = 27
4 x 9 = 36
5 x 9 = 45
6 x 9 = 54
7 x 9 = 63
8 x 9 = 72
9 x 9 = 81
10 x 9 = 90
From this table, we can observe that the digits in the product of the multiplication also follow a pattern. If we look at the product of each equation, such as 9, 18, 27, 36, and so on, we can see that the digits in the result always add up to 9.
For example:
9 = 9 → 9
18 = 1 + 8 → 9
27 = 2 + 7 → 9
36 = 3 + 6 → 9
45 = 4 + 5 → 9
This pattern continues in all the multiples of 9 listed in the table. Regardless of the number of digits in the product, the sum of the digits is always 9. This pattern holds true with larger multiples of 9 as well.
So, in addition to the initial pattern of the multiplication table for 9, which increases one unit at a time, we also observe the pattern that the sum of the digits in each product is always 9.