diff --git a/src/types-and-values/exercise.md b/src/types-and-values/exercise.md
index 467353bc..ea47abd1 100644
--- a/src/types-and-values/exercise.md
+++ b/src/types-and-values/exercise.md
@@ -4,10 +4,10 @@ minutes: 15
 
 # Exercise: Fibonacci
 
-The Fibonacci sequence begins with `[0,1]`. For n>1, the n'th Fibonacci number
-is calculated recursively as the sum of the n-1'th and n-2'th Fibonacci numbers.
+The Fibonacci sequence begins with `[0, 1]`. For `n > 1`, the next number is the
+sum of the previous two.
 
-Write a function `fib(n)` that calculates the n'th Fibonacci number. When will
+Write a function `fib(n)` that calculates the nth Fibonacci number. When will
 this function panic?
 
 ```rust,editable,should_panic
diff --git a/src/types-and-values/hello-world.md b/src/types-and-values/hello-world.md
index b7c6ef74..9c9fc8bd 100644
--- a/src/types-and-values/hello-world.md
+++ b/src/types-and-values/hello-world.md
@@ -32,7 +32,7 @@ Key points:
 - Rust is very much like other languages in the C/C++/Java tradition. It is
   imperative and it doesn't try to reinvent things unless absolutely necessary.
 
-- Rust is modern with full support for things like Unicode.
+- Rust is modern with full support for Unicode.
 
 - Rust uses macros for situations where you want to have a variable number of
   arguments (no function [overloading](../control-flow-basics/functions.md)).
diff --git a/src/types-and-values/values.md b/src/types-and-values/values.md
index 71bef8e6..a5a662b6 100644
--- a/src/types-and-values/values.md
+++ b/src/types-and-values/values.md
@@ -24,7 +24,7 @@ The types have widths as follows:
 
 <details>
 
-There are a few syntaxes which are not shown above:
+There are a few syntaxes that are not shown above:
 
 - All underscores in numbers can be left out, they are for legibility only. So
   `1_000` can be written as `1000` (or `10_00`), and `123_i64` can be written as