Complete the Number: Make 13? Divisible by 10

Question

Complete the number so that it is divisible by 10 without a remainder:

13? 13\text{?}

Video Solution

Step-by-Step Solution

To determine the missing number that makes 13? 13? divisible by 10, we must consider the divisibility rule for 10: A number is divisible by 10 if its last digit is 0. Therefore, for the number 13? 13? to be divisible by 10, ? must be 0.

We examine the answer choices:

  • Choice 1: 1. If ? is 1, the number 131 131 is not divisible by 10.
  • Choice 2: 2. If ? is 2, the number 132 132 is not divisible by 10.
  • Choice 3: 3. If ? is 3, the number 133 133 is not divisible by 10.
  • Choice 4: All answers are incorrect. The number should be 130 130 to be divisible by 10.

Upon examining the choices, since none corresponds to a digit of 0, the correct answer is indicated by Choice 4: All answers are incorrect.

Answer

All answers are incorrect.