Question

What is the digit in the one's place of the square of the number 2934?
(In explanation)

Answer 1

Answer:

6 is the digit in the ones place of the square of the number 2934

Answer 2

Answer:

The digit in the one's place of the square of the number 2934 is 6

Step-by-step explanation:

Solution:

The unit digit of the square of 2934 can be determined using the Rule Method.

The last digit i.e one digit of the product you get when you multiply 2934 by itself is the unit digit of the square of 2934.

Rule Method

• The unit digit  can only 0, 1, 4, 5, 6, or 9.
• A number depends on its units digit is referred as the unit digit of the square.

The rules are:

Rule 1:

If a number's unit digit is 0, then its unit digit in its square is also 0.

Rule 2:

The unit digit of the square of an integer is 1 if the unit digit of that number is 1 or 9.

Rule 3:

The unit digit of the square of an integer is 4 if the unit digit is either 2 or 8.

Rule 4:

If a number's unit digit is 5, then the square of that number's unit digit is also 5.

Rule 6:

The unit digit of the square of an integer is 6 if the unit digit is either 4 or 6.

Rule 7:

If a number's unit digit is 3 or 7, the square of that number's unit digit is 9.

Rule 6 is applicable because the unit digit of 2934 is 4, and the unit digit of the square of 2934 is 6.

Square of 4 = 4 × 4

                   = 16

Therefore the unit digit of 16 is 6

Final answer:

The digit in the one's place of the square of the number 2934 is 6

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