Quick and Easy Way to Divide a Number by 9

Condition:

Any number divided by 9

Methods:

Step 1: Write the last digit of the digit of the dividend as the last digit of the quotient

Step 2: Add the second last digit of the dividend to the last digit of the quotient, and put it as the second last digit of the quotient.

Step 3: Repeat step 2 for the next digit.

Step 4: Repeat step 2 again for another digit. Take note that, the sum (7 + 6 = 13) is greater than 9, hence the tens digit of the sum need to be added to another value place later on.

Step 5: This step is a little bit tricky. For the first digit of the dividend, we still repeat step 2, but we DO NOT put the answer ( 13 + 7 = 20) as the first digit of the quotient. Instead, we take it out, and divide it 9.

Step 6: We add the tens digit of 13 to the tens value place of the quotient. At the same time, we calculate 20 ÷ 9 = 2 remain 2.

 Step 7: Add the answer that we obtain from step 6 to the first digit of the quotient.

Lastly, we obtain the answer.

Practice:

1. 2925 ÷ 9 =
2. 19206 ÷ 9 =
3. 143725 ÷ 9 =
4. 4182732 ÷ 9 =

Answer:

1. 325;  2. 2134; 3. 15969r4; 4. 464748