diff --git a/curriculum/challenges/english/25-front-end-development/lecture-working-with-numbers-booleans-and-the-math-object/673271884bf678d8b9c64f56.md b/curriculum/challenges/english/25-front-end-development/lecture-working-with-numbers-booleans-and-the-math-object/673271884bf678d8b9c64f56.md
index 6cc8443854c..a9f1a0d0334 100644
--- a/curriculum/challenges/english/25-front-end-development/lecture-working-with-numbers-booleans-and-the-math-object/673271884bf678d8b9c64f56.md
+++ b/curriculum/challenges/english/25-front-end-development/lecture-working-with-numbers-booleans-and-the-math-object/673271884bf678d8b9c64f56.md
@@ -14,35 +14,76 @@ Watch the lecture video and answer the questions below.
 
 ## --text--
 
-How can you check if a number is even using the `modulus` operator in JavaScript?
+Which of the following operators should you use to subtract one number from another?
 
 ## --answers--
 
-Use the `modulus` operator and check if the remainder is equal to `0` using strict equality (`===`).
-
----
-
-Use the `modulus` operator and check if the remainder is greater than `1`.
+`+`
 
 ### --feedback--
 
-Consider what remainder an even number gives when divided by `2`.
+Think about the symbol typically used for subtraction.
 
 ---
 
-Use the `modulus` operator and ignore the remainder.
-
-### --feedback--
-
-Consider what remainder an even number gives when divided by `2`.
+`-`
 
 ---
 
-Use the `modulus` operator and check if the remainder is equal to 1.
+`*`
 
 ### --feedback--
 
-Consider what remainder an even number gives when divided by `2`.
+Think about the symbol typically used for subtraction.
+
+---
+
+`/`
+
+### --feedback--
+
+Think about the symbol typically used for subtraction.
+
+## --video-solution--
+
+2
+
+## --text--
+
+What’s the output of the following code?
+
+```js
+const result = 4 / 0;
+console.log(result);
+```
+
+## --answers--
+
+`Infinity`
+
+---
+
+`4`
+
+### --feedback--
+
+Recall the special value JavaScript returns when you divide by zero.
+
+---
+
+`1`
+
+### --feedback--
+
+Recall the special value JavaScript returns when you divide by zero.
+
+---
+
+`16`
+
+### --feedback--
+
+Recall the special value JavaScript returns when you divide by zero.
 
 ## --video-solution--
 
@@ -50,71 +91,40 @@ Consider what remainder an even number gives when divided by `2`.
 
 ## --text--
 
-Which of these statements best describes operator precedence in JavaScript?
+What’s the output of the following code?
+
+```js
+const remainder = 5 % 3;
+console.log(remainder);
+```
 
 ## --answers--
 
-Addition and subtraction have the highest precedence.
+`15`
 
 ### --feedback--
 
-Consider which operations are executed first in a mathematical expression.
+Remember that `%` is the remainder operator, so another way to think of the equation is, after `3` goes into `5` once, what’s left?
 
 ---
 
-Exponentiation has the highest precedence, followed by multiplication, division, and remainder.
+`2`
 
 ---
 
-Multiplication and division have lower precedence than addition and subtraction.
+`3`
 
 ### --feedback--
 
-Consider which operations are executed first in a mathematical expression.
+Remember that `%` is the remainder operator, so another way to think of the equation is, after `3` goes into `5` once, what’s left?
 
 ---
 
-All operators have the same precedence.
+`1.6666666666666667`
 
 ### --feedback--
 
-Consider which operations are executed first in a mathematical expression.
-
-## --video-solution--
-
-2
-
-## --text--
-
-How do you use the subtraction operator in JavaScript to find the difference between two numbers?
-
-## --answers--
-
-Use the plus sign (`+`) to subtract numbers.
-
-### --feedback--
-
-Think about the symbol typically used for subtraction.
-
----
-
-Use the minus sign (`-`) to subtract a smaller number from a bigger number.
-
----
-
-Use the multiplication sign (`*`) to perform subtraction.
-
-### --feedback--
-
-Think about the symbol typically used for subtraction.
-
----
-
-Use the division sign (`/`) to find the difference.
-
-### --feedback--
-
-Think about the symbol typically used for subtraction.
+Remember that `%` is the remainder operator, so another way to think of the equation is, after `3` goes into `5` once, what’s left?
 
 ## --video-solution--