There are no user reviews yet. Be the first to add a review.
Summary No1 is a simple arithmetic exercises of the mind. Make the result of expressions to "1", by changing the operators "+, -, ×, ÷". Those operators can be changed by tapping. For example ?2+7+9+4=1 should be changed to ?2×7-9-4=1 One game can be done in 1, 2 minutes so it can be a good small pastime. "...