Every so often its good to exercise your brain with a math problem or two that forces you to recall principles you learned decades prior. Can you solve 5+5x5+5 without a hitch?

How to convert values in Messages. Converting values in Messages works similar to solving math problems in the app. Type the ...

People who solve particularly hard problems, like physicists and mathematicians, are especially known for using their unfocused minds for breakthrough problem-solving.