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In everyday life, mathematics helps us calculate expenses or discounts in shops. Of course, trigonometry and algebraic equations are not useful for most people, but it never hurts to recall school days of learning mathematics!
Let’s say the problem in the picture can be easily solved by any elementary school student. But adults are lost because they forgot what they learned!
Try to solve it!
Do you want a hint?
Remember the order of steps when solving this problem.
What is your answer?
Most likely you answered 3 or 12.
But according to the rules, you first calculate what’s in the parentheses, which means 8 ÷ 4 = 2.
Then, left to right: 24 ÷ 4 = 6.
And finally, 6 × 2 = 12.
