🔴MATH CLASS 2- UNIT DIGIT II SMART STUDY EFE

The unit digit of a number is the digit in the one's place, or the rightmost digit. For example, the unit digit of 457 is 7.
How to find the unit digit
The unit digit of a single-digit number is the number itself. For example, the unit digit of 5 is 5.
The unit digit of a number with multiple digits is the first digit from the right. For example, the unit digit of 1564 is 4.
The unit digit of the sum of two numbers is the same as the unit digit of the sum of their respective unit digits.
The unit digit of the product of two numbers is the same as the unit digit of the product of their respective unit digits.
Unit digit patterns
The unit digit of 0, 1, 5, and 6 is the same as the number itself when raised to any power. For example, 0^n = 0, 1^n = 1, 5^n = 5, and 6^n = 6.
The unit digit of a number repeats when divided by a certain number. For example, the unit digit of 2 repeats in the sequence 2, 4, 8, 6 when the power is a multiple of 4.