Question

Use properties of rational numbers to multiply the following 81 times (-28.54)use properties of rational numbers to multiply the following 81 times -28.54.

Answer 1

To multiply 81 by -28.54, we can use the distributive property of multiplication over addition. Firstly, we can express -28.54 as the sum of -28 and -0.54.

Multiplying 81 by -28:
81 x (-28) = -2268

Multiplying 81 by -0.54:
81 x (-0.54) = -43.74

Then, we can add the two results together:
-2268 + (-43.74) = -2311.74

Therefore, the product of 81 and -28.54 is -2311.74.