It’s important to keep PEMDAS in mind (order of operations) when solving this.
PEMDAS stands for: Parentheses, exponents, multiplication, division, addition, subtraction.
So when doing this problem we can see that there are two multiplication problems (8 • 9) and (2 • 5) so let’s put those to the side and solve those.
8 • 9 = 72
2 • 5 = 10
Now we can put the problem back together as 72-10
So ... 72-10=62