CNN — To reach the National Suicide Prevention Lifeline for mental health crises, it now takes only three digits: 988. On Saturday, Vibrant Emotional Health, the nonprofit that operates the lifeline ...

Column addition is a way of adding numbers together. It's helpful when you're adding two-digit or three-digit numbers together. When you do column addition, you lay out the numbers you are adding ...

For individuals in crisis, the 10-digit National Suicide Prevention Lifeline could be difficult to remember. Although the global rate of suicide has declined, according to the Centers for Disease ...

The nationwide Suicide and Crisis Lifeline experienced a huge uptick in calls and texts after the launch of its 3-digit number, 988, last year. But officials said there are some much-needed ...

Explains the concept of zero in mathematics, emphasizing its role as a number that represents the empty set. It illustrates how zero is used in addition and subtraction, showing that adding or ...