What do you get when you multiply a number by zero?
To find the answer, we can multiply any number by zero to see what happens. For example, three times zero. And here we have three groups of zero. There’s nothing in any group. So the answer is zero. Three times zero is zero.
What would happen if we had 27 times zero? That’s the same as 27 groups of nothing. That’s right. 27 times zero is zero. If we did 364 times zero, the answer would still be zero.
So we found a new rule. When you multiply a number by zero, the answer is always zero. We found our answer by multiplying different numbers by zero. The answer was always zero.