Question

1. \\((7.3)(0.021)\\)

Explanation:

Count decimal places

The first factor \(7.3\) has \(1\) decimal place.
The second factor \(0.021\) has \(3\) decimal places.
The product will have \(1 + 3 = 4\) decimal places.

Multiply as whole numbers

$$ 73 \times 21 = 73 \times (20 + 1) = 1460 + 73 = 1533 $$

Place the decimal point

Placing the decimal point to allow \(4\) decimal places in \(1533\):

$$ 0.1533 $$

Answer:

\(0.1533\)