Is 4x4+4x4+4-4x4=20 correct?

Is 4x4+4x4+4-4x4=20 correct. No basically Judy on the original site has it right.

In Australia we call it BOMDAS Bracketts, Order Multiple Divide Add and Subtract So even using the System you have you look at the problem and read it as it is written. It takes 2 secs to put in bracketts if they are needed. For 20 to be right.

it has to be written as (4x4) or 4x x meaning 4 since I have no small two fuction. So 4x + 4x + 4 - 4x that is 20.

However as it is written 4 x 4 = 16 + 4 = 20 x 4 = 80 + 4 = 84 - 4 = 80 x 4 = 320.

Maths is simple and Logical, i you use an I phone like all you did it uses BOMDAS when it is not required to. I did it on my Iphone to prove a point to my Uncle and got 20 or would have if I continued.

So in doing Maths like all of us learned, do not trust a calculator or an Iphone. Do it has it is said and do don't change the sum outside of the perameters. Like building a house. You don't want to use KMetres and Miles Inches and Cm for half a house you the constant measurements always. Because a sum like this you don't know what the Equasion really is.

bring it to something easy.say you have 4 chairs and you need 4 times more chairs, that means you need 16 chairs, however another 4 wants to come that means 20, oh no 4 times as many people came than thought you need 80 chairs, oh you have got to be kidding me another 4 that means 84 people are coming. You get a phone call back quickly saying no those 4 dropped out but we now need another 4 x 80 chairs because its grown to 320 people needing chairs now.using BOMDAS and only getting 20 chairs is pretty stupid when you have the figures for 320. 300 people are going to have to stand while you the host gets bad reviews and loss your job because you couldn't count.

Added (1). Putting in brackets changes the eqasion. You all basically short chaired 300 people.

You under feed starving children.

You basically sent 20 soldiers to their deaths because the 300 others didn't go. Next time to save the world read and do as the sum tells you. No brackets means no bracket () are put in for a reason so you know that you have to do them before you do the sum. NO () means you just do the sum.

try this one 1 + 2 + 3 + 4 x 10

2 x 7 - 7 + 10

3 - 2 x 7 - -7

4 x 4 + 4 x 4 + 4 - 4 x 4 =
16 + 16 + 4 - 16 =
36 - 16 =
20

4x4+4x4+4-4x4 /// learn order of operations

= (4x4)+(4x4)+4-(4x4)

= 16 + 16 + 4 - 16

= 20

In the US, we use PEMDAS, which is Parentheses, Exponents, Multiplication, Division, Addition, Subtraction. According to this principle, and starting with multiplication, the equation simplifies to 16+16+4-16. This would indeed make your answer 20.

Yes.

If you don't trust a regular calculator get a calculator that has brackets symbols.

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