(5×15)+(5×5)= __________.
26
We know that, multiplying two numbers separately by 5 and then adding is same as multiplying the sum of two numbers by 5.
i.e., If x and y are any two numbers, then 5x+5y=5(x+y)
So,
=(5×15)+(5×5)
=5×(15+5)
=5×265=26