Forgot password? New user? Sign up
Existing user? Log in
1 □ 2 □ 3 □ 4 □ 5 □ 6 □ 7 □ 8=9 \large 1 \, \square \, 2 \, \square \, 3 \, \square \, 4 \, \square \, 5 \, \square \, 6 \, \square \, 7 \, \square \, 8 = 9 1□2□3□4□5□6□7□8=9
There are 27=128 2^7 =128 27=128 ways in which we can fill the squares with +,− +, -+,−.
How many ways would make the equation true?
Note: You are not allowed to use parenthesis.
Problem Loading...
Note Loading...
Set Loading...