Question

Solve: $(2.5\times 0.5)(+1.3\times 0.3)-(1.4\times 0.2)$

Answer 1

Use the concept of multiplication of decimals

Given $(2.5\times 0.5)(+1.3\times 0.3)-(1.4\times 0.2)$

Will solve the brackets first, so

$(2.5\times 0.5)(+1.3\times 0.3)-(1.4\times 0.2)$

$=(1.25)(0.39)-(0.28)$

According to BODMAS, first off brackets and then multiplication

$$\begin{gathered} =(0.4875)-(0.28) \\ =0.2075 \end{gathered}$$

Hence, $(2.5\times 0.5)(+1.3\times 0.3)-(1.4\times 0.2)=0.2075$