Identity Property of Addition: The sum of any number a and 0 is the number. \begin{split} a + 0 &= a \\ 0 + a &= a \end{split} Multiply the bottom number by the ones digit in the top number, then ...Identity Property of Addition: The sum of any number a and 0 is the number. \begin{split} a + 0 &= a \\ 0 + a &= a \end{split} Multiply the bottom number by the ones digit in the top number, then by the tens digit, and so on. If the divisor is larger than the first digit of the dividend, divide the first two digits of the dividend by the divisor, and so on.
