곱셉법

Method for diving by 9.

• 23 / 9 = 2 remainder 5

  The first figure of 23 is 2, and this is the answer.
  The remainder is just 2 and 3 added up!

• 43 / 9 = 4 remainder 7

  The first figure 4 is the answer
  and 4 + 3 = 7 is the remainder - could it be easier?

134 / 9 = 14 remainder 8

The answer consists of 1,4 and 8.
1 is just the first figure of 134.
4 is the total of the first two figures 1+ 3 = 4,
and 8 is the total of all three figures 1+ 3 + 4 = 8

842 / 9 = 8₁2 remainder 14 = 92 remainder 14

Actually a remainder of 9 or more is not usually
permitted because we are trying to find how
many 9's there are in 842.

Since the remainder, 14 has one more 9 with 5
left over the final answer will be 93 remainder 5