سؤال 65

Select all statements that are true about the product (-13) * 0.

The product is -13, because multiplying by zero leaves the other factor unchanged.
The product is 0.پاسخ درست
The product is 0 whatever the sign of the other factor.پاسخ درست
Zero times an integer is zero however large that integer is.پاسخ درست

توضیح

Taking a quantity zero times collects nothing at all, so the result rests exactly at zero however large the other factor is and whichever side of zero it lies on. Treating the zero as though it left its partner untouched confuses it with one, which is the factor that really does preserve whatever it multiplies.

توضیح

ادامهٔ این آزمون