Exercise 5
Calculate using a simple method.
1. $682+325$
$573+198$
2. $897+234$
$788+143$
3. $694+367$
$595+698$
Practice 5
$$
\begin{array}{llllll}
1.1007 & 771 & 2.1131 & 931 & 3.1061 & 1293
\end{array}
$$