Question

Group two numbers suitably and add the following.

$1111+2222+3333+4444+89+78+67+56$

Answer 1

$1111+2222+3333+4444+89+78+67+56$

$$\begin{gathered} =(1111+89)+(2222+78)+(3333+67)+56 \\ =1200+2300+3400+56 \\ =6956 \end{gathered}$$

Hence, the sum of $1111+2222+3333+4444+89+78+67+56$ is $6956$.