Here’s a short math challenge that looks easier than it is. Can you solve 40 + 5 × 0 + 9 = ? without a calculator?
The trick is remembering the order of operations. Multiplication takes priority over addition and subtraction, even when the expression is written in one line.
Work it out step by step
First, rewrite the expression as 40 + (5 × 0) + 9. Since any number multiplied by zero equals zero, that middle term disappears.
Then finish the addition and subtraction from left to right.
The correct answer
40 + 5 × 0 + 9 = 49.
A common mistake is to work strictly from left to right and multiply a running total by zero. Follow the standard order of operations and you won’t fall for that trap.
What answer did you get on your first try?
