Question

Find the largest 4-digit number divisible by 18. (Hint: divide 9999 by 18 and subtract remarked)​

Answer 1

As we know that :

• Largest 4 - digit no. = 9999.

To find :

• The largest 4 - digit number divisible by 18.

Given hint :

• Divide 9999 by 18 and subtract it from the remainder.

Finding the no. :

⇒ 9999 ÷ 18.

18 )9999( 555

-90

99

- 90

99

- 90

9.

Quotient : 555.

Remainder : 9.

⇒ 9999 - 9

⇒ 9990.

.°. The no. is 9990.