👉 Palm math is a mental calculation technique that simplifies complex arithmetic by breaking down numbers into smaller, more manageable parts, often focusing on the "palm" of each digit (the ones, tens, hundreds) to perform quick additions and subtractions. For instance, when adding 456 + 789, one can first add the ones place (6 + 9 = 15), then regroup by adding the tens (4 + 8 + 1 = 13, which becomes 30 + 10 = 40) and the hundreds (5 + 7 = 12), and finally adjust for the carry-over. This method is particularly useful for mental math, making it easier to perform calculations without relying on calculators or paper.
