Question

A student multiplied 8355 by 89 instead of multiplying by 98. By how much was his answer less than the actual answer?

Answer 1

Find the actual answer:

$8355\times 98=818790$

Now find the answer of the student:

$8355\times 89=743595$

So,Find the difference between both the answers:

$818790-743595=75195$

Hence, the student's answer is 75,195 less than the actual answer.