Math shuffle...

[Cam66]

Rules:
Take the equation from the previous post and yield another valid equation by doing only 2 of the following:
*change a symbol
*add one digit
*remove one digit
*change one digit

Example:
Starting Equation: 1+1+1=3
Correct Changes could include:
1-1+1=1
1x1+2=3


Here we go:
10+20+30=50

[OwenF]

10 + 20 - 30 = 0

[GouldFan]

20 + 20 -30 = 10

[themuzicman]

2 x 20 - 30 = 10

[GouldFan]

Can we use brackets? Are we using + - ÷ x only?


2 x 20 + 30 = 70

[themuzicman]

2 x 20 + 3 + 0 < 70

[GouldFan]

2 + 20 + 3 + 7 < 70

I think we would need to clarify some rules here. :)

[Condo]

((2 + 20) x 3) + 7 >70

I suppose brackets are fine for simplicity. It'll get difficult to make them work without.

But, ignore the brackets when it comes to making a new one?

[K27]

2 + 20 x 3 + 8 = 70

I detest inequalities.

[GouldFan]

I detest inequalities.
I agree. It makes the game too easy.

3 + 20 x 3 + 8 = 71

[Condo]

3 + 20 x 2 + 8 = 51

[themuzicman]

3 + 20 / 2 + 8 = 21

[masterpeach]

3 - 20/2 + 8 = 1

[themuzicman]

3 - 20/2 + 8 = 0 + 1

[masterpeach]

3 + 20/2 + 8 = 20 + 1

[Condo]

3 + 20 / 2 + 8 = 20 + 1 / 1

Lets expand.

[GouldFan]

3 + 20 / 2 + 7 = 20 + 1 - 1

Changing only 2 seems a little restrictive. :thinking:

[themuzicman]

3 + 20 / 4 + 7 = 20 + 1 - 6

[GouldFan]

3 + 20 - 4 + 7 = 20 + 1 x 6

[themuzicman]

3 + 20 - 4 + 7 = 20 + 1^2 x 6

[GouldFan]

3 + 20 - 4 + 7 x 1 = 20 + 1^2 x 6

[masterpeach]

3 + 20 - 4 + 4 x 1 = 20 + 1/2 x 6

[Condo]

3 + 29 - 4 + 4 x 1 = 20 + 4/2 x 6

[GouldFan]

3 + 69 - 4 + 4 x 1 = (20 + 4)/2 x 6

Are we counting one set of brackets as a modification, or can we use it whenever needed?

[Condo]

((3 + 69) - 4 + 4) x 4 = ( 20 + 4 ) x (2 x 6)
3 + 69 - 4 + 4 x 4 = 20 + 4 x 2 x 6


Id say brackets for simplicity. They only really tell you how to split the equation, they are not tools, necessarily. I doubt this game would be interesting if we had brackets as a modification. Things would change too slowly, and you can only look at it limitedly if so.

But, include a "raw" version underneath, will help with subsequent equations.

[masterpeach]

But
((3 + 69) - 4 + 4) x 4 =! 3 + 69 - 4 + 4 x 4 !
288 =! 84

As the use of brackets is determined in mathematics, I wouldn't want to use them differently in this game.