Question

multiply 1000 × 0.281

Explanation:

Step1: Recall decimal multiplication rule

When multiplying a number by a power of 10 (like 1000), we move the decimal point to the right by the number of zeros. For \(1000\times0.281\), since 1000 has 3 zeros, we move the decimal point in 0.281 three places to the right.

Step2: Perform the multiplication

\(0.281\times1000 = 281\) (because moving the decimal in 0.281 three places right: \(0.281
ightarrow2.81
ightarrow28.1
ightarrow281\)). Also, directly calculating \(1000\times0.281=\frac{1000}{1}\times\frac{281}{1000}=\frac{1000\times281}{1000}=281\).

Answer:

281