diff --git a/content/basics/numeric-constants.go b/content/basics/numeric-constants.go
index e7a7010..97d5155 100644
--- a/content/basics/numeric-constants.go
+++ b/content/basics/numeric-constants.go
@@ -5,8 +5,8 @@
 import "fmt"
 
 const (
-	Big   = 1 << 100
-	Small = Big >> 99
+	Big   = 1 << 100  // == 1267650600228229401496703205376
+	Small = Big >> 99 // == 2
 )
 
 func needInt(x int) int { return x*10 + 1 }