Learn an easy subtraction trick to quickly subtract two-digit numbers by finding the nearest multiple of 10 and adding or subtracting the same amount from both numbers, resulting in the same difference. Practice with examples like 65 minus 29, 86 minus 17, and 150 minus 38 to master this efficient technique.

Learn a quick subtraction trick to subtract two-digit numbers by finding the nearest multiple of 10 and adding 1 to both numbers, allowing you to calculate in just five seconds.

Explains the concept of finding the nearest multiple of 10 using the example of numbers like 17, 20, and 86. Demonstrates how adding or subtracting the same amount from two numbers results in the same difference between them.

The chapter explains a method for finding the difference between numbers by rounding to the nearest multiple of 10 and then adding or subtracting the difference. It demonstrates this process with examples using numbers like 46, 65, 134, and 291.

Master the easy subtraction trick by quickly finding the nearest multiple of 10 and adjusting the numbers accordingly, making mental math a breeze. Practice with provided examples and test your skills by solving subtraction problems effortlessly in just five seconds.