Complete the following exercise:
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Complete the following exercise:
Let's remember the rule:
Therefore, the sign of the exercise result will be negative:
What will be the sign of the result of the next exercise?
\( (-2)\cdot(-4)= \)
That would be addition, not multiplication! When you add: 1 + (-1) = 0. But when you multiply: 1 × (-1) = -1. These are completely different operations with different rules.
Use this simple pattern: same signs = positive, different signs = negative. Since 1 is positive and -1 is negative, they have different signs, so the answer is negative.
No! Multiplication is commutative, meaning 1 × (-1) = (-1) × 1 = -1. The order doesn't change the result.
Multiplying by -1 always gives you the opposite of the original number. So 5 × (-1) = -5, and 1 × (-1) = -1.
Yes! Think of 1 × (-1) as taking 1 group of (-1). On a number line, you'd move 1 unit to the left from zero, landing on -1.
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