Question

Using the most convenient combinations ,find the sum of the following

$1238+2755+762+3245$.

Answer 1

Finding sum using most convenient combinations.

We have $1238+2755+762+3245$$=1238+\left(762+2755\right)+3245$ (Using commutative property)

$=\left(1238+762\right)+\left(2755+3245\right)$ (Using associative property)

$$\begin{gathered} =2000+6000 \\ =8000 \end{gathered}$$

Hence, the required answer is $8000$.