When solving mathematical expressions, always follow the order of operations (PEMDAS: Parentheses, Exponents, Multiplication/Division, Addition/Subtraction), where multiplication and division have equal priority and are performed left to right, and addition and subtraction have equal priority and are performed left to right; for example, in the expression 2 - 8 * 2 - 18, you first solve the parentheses (2 - 8 = -6), then perform the multiplication (8 * -6 = -48), and finally the subtractions (2 - (-48) - 18 = 2 + 48 - 18 = 50).
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Maybe 1 in 5 Can Solve This Math Problem!Added:
Hey guys, and welcome to our channel.
Here, we have 2 - 8 * 2 - 18 parentheses. What is the answer of this question?
Most people, when solving this math expression, first go for this subtraction between 8 and 2 and write inside of this expression 6 -6.
And then, they go for this parentheses and write inside of this expression -6. Finally, they go for this multiplication between -6 and -6 and write of this expression 36. But, this answer is not correct. Let me show you how to solve this math expression. We have to solve this math expression in this way: first, parentheses, then exponent, then multiplication or division, and then addition or subtraction. Remember that multiplication and division have the same level of priority, and addition and subtraction have the same level of priority, too. Now, according to the PEMDAS, in first step, we have one parenthesis that we have to solve it first. 2 - 8 = -6.
Now, let's rewrite the expression. We have 2 8. We have one multiplication here.
Because when a number is placed next to parentheses, it means multiplication.
And -6.
Now, we have Excuse me. We have one subtraction here and one multiplication here. And as we know, multiplication has higher priority than than addition and subtraction. So, we have to solve this multiplication first. 8 * -6 gives us -48.
Finally, we have 2 - -8.
Negative * negative = positive. So, 2 + 48 = 50.
So, our final answer to this question is 50.
Thank you for watching. Please like and subscribe if you like this video.
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