Question

solve. -7.4 × (-2.2)

Explanation:

Step1: Recall sign rule for multiplication

When multiplying two negative numbers, the result is positive. So, \(-7.4\times(-2.2)=7.4\times2.2\).

Step2: Multiply the decimals

First, multiply \(74\times22 = 1628\). Since \(7.4\) has 1 decimal place and \(2.2\) has 1 decimal place, the total number of decimal places in the product is \(1 + 1=2\). So, we place the decimal point in \(1628\) two places from the right, giving \(16.28\).

Answer:

\(16.28\)