diff --git a/math/math.go b/math/math.go
new file mode 100644
index 0000000..f1384b2
--- /dev/null
+++ b/math/math.go
@@ -0,0 +1,9 @@
+package math
+
+func Sum(a, b int) int {
+	return a + b
+}
+
+func Mul(a, b int) int {
+	return a * b
+}