It's a math puzzle which requires simple adding, subtracting, multiplying etc.
Very Important: When any number is placed on an odd number - the two #s will get added.
When any number is placed on an even number - the even # is subtracted.
Look at the second image. See the question mark? Whatever number is placed on that, will get cloned.
Some levels have numbers that alternate between being positive & negative.
See the bombs in the third image? I don't know how they work, haven't gotten that far yet!
There are 150 levels and I've done about 45. Number Chef is FREE. So do give it a chance.
Similar games using Order of Operations