Question

Розставити замість зірочок знак + або - щоб одержати правильну рівність 1*2*3*4*5*6*7*8*9=10

Answer 1

вот так 
1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 х 9 = 100 
1 + 2 х 3 + 4 + 5 + 67 + 8 + 9 = 100 
12 – 3 – 4 + 5 – 6 + 7 + 8 9 = 100 
1 + 2 3 – 4 + 5 6 + 7 + 8 + 9 = 100

Answer 2

Solving the Equation

To solve the equation 1*2*3*4*5*6*7*8*9, we need to rearrange the numbers and insert either a plus (+) or minus (-) sign between them to make the equation equal to 10.

Let's start by rearranging the numbers and inserting the signs:

1*2*3*4*5*6*7*8*9 = 10

1*2*3*4*5*6*7*8*9 = 10 1*2*3*4*5*6*7-8+9 = 10 1*2*3*4*5*6*7+8-9 = 10 1*2*3*4*5*6*7-8-9 = 10 1*2*3*4*5*6*7+8+9 = 10 1*2*3*4*5*6*7-8*9 = 10 1*2*3*4*5*6*7+8*9 = 10

After trying different combinations, it seems that there is no way to rearrange the numbers and insert plus and minus signs to make the equation equal to 10. Therefore, it appears that it is not possible to achieve the equality 1*2*3*4*5*6*7*8*9 = 10.