Question

solve
3.2 × (-7.2)

Explanation:

Step1: Recall multiplication rule for signs

When multiplying a positive number by a negative number, the result is negative. So, \(3.2\times(-7.2)=-(3.2\times7.2)\).

Step2: Multiply the absolute values

Calculate \(3.2\times7.2\). We can do this as \((3 + 0.2)\times(7 + 0.2)=3\times7+3\times0.2 + 0.2\times7+0.2\times0.2=21 + 0.6+1.4 + 0.04 = 23.04\).

Step3: Apply the sign

Since we had a negative sign from the multiplication rule, the result is \(-23.04\).

Answer:

\(-23.04\)