Question

4*(25*7)-2*(5*16)
evaluate using suitable properties

Answer 1

$$\begin{gathered} 4\times \left(25\times 7\right)-2\times \left(5\times 16\right) \\ =\left(4\times 25\right)\times 7-\left(2\times 5\right)\times 16\left[\mathrm{Associative}\mathrm{law}\right] \\ =100\times 7-10\times 16 \\ =700-160 \\ =540 \end{gathered}$$