diff --git a/listings/ch03-common-programming-concepts/no-listing-07-numeric-operations/src/main.rs b/listings/ch03-common-programming-concepts/no-listing-07-numeric-operations/src/main.rs
index 77c716c145..725515d90c 100644
--- a/listings/ch03-common-programming-concepts/no-listing-07-numeric-operations/src/main.rs
+++ b/listings/ch03-common-programming-concepts/no-listing-07-numeric-operations/src/main.rs
@@ -1,17 +1,17 @@
 fn main() {
     // addition
-    let sum = 5 + 10;
+    let sum = 5 + 10; // 15
 
     // subtraction
-    let difference = 95.5 - 4.3;
+    let difference = 95.5 - 4.3; // 91.2
 
     // multiplication
-    let product = 4 * 30;
+    let product = 4 * 30; // 120
 
     // division
-    let quotient = 56.7 / 32.2;
+    let quotient = 56.7 / 32.2; // Approximately 1.760869565
     let truncated = -5 / 3; // Results in -1
 
     // remainder
-    let remainder = 43 % 5;
+    let remainder = 43 % 5; // 3
 }