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Worksheet Worksheet 3
1.
Calculate \(159 - 217\) using a number line.
2.
Calculate \(-228 - 146\) using a number line.
3.
Calculate \(-215 + 273\) using a number line.
4.
Practice your mental arithmetic by performing the following calculations without drawing a number line (though you may certainly visualize one).
\begin{equation*}
\begin{aligned}
-211 - 157 \amp = \\
-118 + 205 \amp = \\
-312 + 129 \amp = \\
-138 - 124 \amp = \\
-152 + 361 \amp = \\
-212 + 188 \amp = \\
-242 + 170 \amp = \\
-143 + 137 \amp = \\
238 - 314 \amp =
\end{aligned}
\end{equation*}
