99-4 equals 96.
What you want to ask is how much is 99 MINUS 4? Is it 96? Equal to 95 is not equal to 96. According to the query of China Mathematics Education Network, 99 minus 4 is the basic addition and subtraction operation of mathematics, and this topic adopts subtraction calculation. Subtraction rule of numbers within 10 thousand: the same numbers are aligned and counted from one digit.