Multiplying and dividing whole numbers by numbers greater than 0 and less than 1 can be broken into a whole number calculation followed by multiplying or dividing by a power of 10, for example 10, 100 ...

Don’t panic, we just need to answer the calculation to open the door. Something tells me that was not the correct answer. But 12 minus nine is three, three divided by three is one, and one plus 12 is ...

The confusion (likely intentional) boiled down to a discrepancy between the math rules used in grade school and in high school. By Steven Strogatz Recently I wrote about a math equation that had ...