Basic College Mathematics (9th Edition)

#Note: $7・7・0 = 7 \times 7 \times 0$ $7 \times 7 \times 0 = 0$
$a \times b\times c =$ General formula for finding the answer 1. Multiply the first two numbers together $(a \times b)$ $7 \times 7 = 49$ 2. Multiply the previous number in Step #1 with the last number $((a \times b) \times c)$ $49 \times 0 = 0$ **Important: Every time something is multiplied by 0, the answer is 0 and therefore certain steps are not needed to find the answer (In this case, Step #1 is not needed since you know the number will be multiplied by 0)