Question

What is the unit digit in (7^95 - 3^56)?

Answer 1

Answer:

5 is the unit digit

Step-by-step explanation:

To find the unit digit of any number

just divide it's power by 4

7^95=95÷4=23 Quotidien & 3 remainder

means

5^3=125

last digit is 5

now

3^56=56÷4=14 Quotidien & 0 remainder

means

1 ( if the power is fully decided by 4 then always put 1 as the last digit )

so...

5×1=5 is the unit digit