diff --git a/maths/last_digit.py b/maths/last_digit.py
new file mode 100644
index 000000000000..9309a0722833
--- /dev/null
+++ b/maths/last_digit.py
@@ -0,0 +1,12 @@
+def last_digit(number: int) -> int:
+    """
+    Return the last digit of a given integer.
+
+    >>> last_digit(1234)
+    4
+    >>> last_digit(-98)
+    8
+    >>> last_digit(0)
+    0
+    """
+    return abs(number) % 10