Mental math techniques

Mental math techniques are strategies to perform calculations in your head efficiently, without tools. They include methods like breaking numbers into parts (decomposition), rounding to simplify calculations and adjusting afterward, and using known multiplication tables or patterns to speed up work. For example, to multiply 48 by 5, you can think of 50 x 4 and subtract 2 x 4. These techniques rely on understanding relationships between numbers and logical steps, making mental calculations quicker and more accurate. They are useful for everyday tasks, saving time and enhancing numerical confidence.