Answer :
2 ways
anything times 5 can be found by halving the number and multiplying by 10
so we get 249.5 times 10 or 2495
or, we can do
499=500-1
so
499 times 5=(500-1)(5)=5(500-1)=5(500)+5(-1)=2500-5=2495
anything times 5 can be found by halving the number and multiplying by 10
so we get 249.5 times 10 or 2495
or, we can do
499=500-1
so
499 times 5=(500-1)(5)=5(500-1)=5(500)+5(-1)=2500-5=2495