This Math Challenge Has a Hidden Trick!

[00:00:00]Hey guys, welcome to this video. In this video we want to find the value of this expression.

[00:00:05]2 cubed minus 8 divided by 2 then times 4. Are you ready to solve? Let's go down to start it. 2 cubed gives us 8.

[00:00:15]So we have 8 minus 8 divided by 2 then times 4.

[00:00:22]Now we do this multiplication. 2 times 4 gives us 8.

[00:00:28]So we have 8 minus 8 divided by 8.

[00:00:34]Now 8 divided by 8 is just 1.

[00:00:39]So we have 8 minus 1 which equals 7.

[00:00:47]But this answer is not correct.

[00:00:49]Because according to the order of operations which is PEMDAS P stands for parentheses, E stands for exponents, M and D stands for multiplication and division and A and S stands for addition and subtraction.

[00:01:09]First [snorts] we have to do parentheses, then exponents, then multiplication or division and then finally addition or subtraction.

[00:01:17]Remember that multiplication and division have equal priority and we have to work from left to right.

[00:01:22]And the same applies to addition and subtraction.

[00:01:25]In this expression we have one exponent, one subtraction, one division and one multiplication.

[00:01:33]According to the PEMDAS, first we have to do this exponent, then this division, then this multiplication and then finally this subtraction.

[00:01:44]If we do this uh multiplication before this division, it is wrong.

[00:01:57]So first 2 cubed, which equals 8.

[00:02:01]So, 8 - 8 / 2, then * 4.

[00:02:08]Now, we have to do this division. 8 / 2 gives us 4.

[00:02:14]Okay, so 8 - 4, then * 4.

[00:02:23]Now, we have to do this multiplication.

[00:02:25]4 * 4 gives us 16.

[00:02:29]So, 8 16, which equals -8.

[00:02:37]And this is our final answer to this problem.

[00:02:41]The correct answer is -8.