Question

EXERCISE 4.2
A. Use divisibility tests to find which of the following numbers are divisible
1. by 8
(a) 8500​

Answer 1

Answer:

firstafaal understand that what is the divisibility of 8

A number is divisible by 8 if its last three digits are divisible by 8. For example, 880 and 905,256 are divisible by 8 but 74,513 is not divisible by 8. To check divisibility by 8, divide the last three digits of the number by 8.

now , let start how to solve it firstafaal put the divisibility rule on it

we know that if last three digit divisible by 8 then whole number will multiply by 8

our question is 8500 so let multiply its last 3 digits 500 . 500 can't divide by 8 so the wholw number can't divide by 8 so its answer will be no

its not divisible by 8

Answer 2

don't know

so much easier