math

Not a real math problem

The New York Times on mathematicians talking about their hatred for the the 8 ÷ 2(2+2) = ? “problem.”

Meet Zequals, a mental math tool

Can some simple rounding help us be more accurate and confident with mental math? The man behind this symbol proposes just that: And it turns out it’s fairly accurate: Basically, using some simplification of numbers we can do mental multiplication more accurately (generally). Confused by the squiggles and colors? Don’t be intimidated. Read more: Zequals: the new …

Meet Zequals, a mental math tool Read More