-71
67 plus 67 plus 67 is equal to 201.
67
67:40
Yes. This only works for multiplication and addition.
3 + 4 + 4 x 15 = 67
107
An addition equation is the same thing even if the numbers are switched around.
79
3+6+7+89+4+5+7+9+90+67 = 287
4
4 plus 8 plus 12 plus 16 is equal to 40.
100