12+3-4+5+67+8+9=100
There is at least one other representation of 100 with 9 digits in the right order and math operations in between.
Can you find it?
Leave your answers in the comments below!
Blog of popular science from the engineering teachers of the European Uni of Madrid
What about 1+2+3+4+5+6+7+(8·9)? It looks like a bit easier :)
ResponderEliminarEste comentario ha sido eliminado por el autor.
ResponderEliminarInstead of showing more solutions, here I give you some "mini-challenges":
ResponderEliminar1. Find a solution using as less operations as possible (my personal record uses 3 operations).
2. Find solutions using operations other than addition, subtraction and product (try powers, extracting roots, factorials...).
3. Find solutions using the decimal point.
4. Find solutions using standard functions, such as logarithms or trigonometric functions.
5. Find the solution involving the largest possible number (please, refrain from multiplying that number by zero).
6. (My favorite one) Find a solution using complex numbers AND trascendental numbers. Of course, you cannot write "i" or "pi" directly, the only numbers you can use are 1,2,3,4,5,6,7,8,9 (in that order).
What about just changing the position of the numbers and signs?
ResponderEliminarJust like this?: 123+45-67+8-9= 100