diff --git a/exercises/practice/binary/.docs/instructions.md b/exercises/practice/binary/.docs/instructions.md
index 046fd3e..6722637 100644
--- a/exercises/practice/binary/.docs/instructions.md
+++ b/exercises/practice/binary/.docs/instructions.md
@@ -20,7 +20,7 @@ A number 23 in base 10 notation can be understood as a linear combination of pow
 - The rightmost digit gets multiplied by 10^0 = 1
 - The next number gets multiplied by 10^1 = 10
 - ...
-- The *n*th number gets multiplied by 10^*(n-1)*.
+- The nth number gets multiplied by 10^_(n-1)_.
 - All these values are summed.
 
 So: `23 => 2*10^1 + 3*10^0 => 2*10 + 3*1 = 23 base 10`
diff --git a/exercises/practice/isogram/.docs/instructions.md b/exercises/practice/isogram/.docs/instructions.md
index 5e48844..2e8df85 100644
--- a/exercises/practice/isogram/.docs/instructions.md
+++ b/exercises/practice/isogram/.docs/instructions.md
@@ -11,4 +11,4 @@ Examples of isograms:
 - downstream
 - six-year-old
 
-The word *isograms*, however, is not an isogram, because the s repeats.
+The word _isograms_, however, is not an isogram, because the s repeats.
diff --git a/exercises/practice/octal/.docs/instructions.md b/exercises/practice/octal/.docs/instructions.md
index 65ce135..0074560 100644
--- a/exercises/practice/octal/.docs/instructions.md
+++ b/exercises/practice/octal/.docs/instructions.md
@@ -21,7 +21,7 @@ as a linear combination of powers of 10:
 - The rightmost digit gets multiplied by 10^0 = 1
 - The next number gets multiplied by 10^1 = 10
 - ...
-- The *n*th number gets multiplied by 10^*(n-1)*.
+- The nth number gets multiplied by 10^_(n-1)_.
 - All these values are summed.
 
 So:
diff --git a/exercises/practice/rotational-cipher/.docs/instructions.md b/exercises/practice/rotational-cipher/.docs/instructions.md
index 4dee51b..4bf64ca 100644
--- a/exercises/practice/rotational-cipher/.docs/instructions.md
+++ b/exercises/practice/rotational-cipher/.docs/instructions.md
@@ -22,8 +22,8 @@ Ciphertext is written out in the same formatting as the input including spaces a
 
 ## Examples
 
-- ROT5  `omg` gives `trl`
-- ROT0  `c` gives `c`
+- ROT5 `omg` gives `trl`
+- ROT0 `c` gives `c`
 - ROT26 `Cool` gives `Cool`
 - ROT13 `The quick brown fox jumps over the lazy dog.` gives `Gur dhvpx oebja sbk whzcf bire gur ynml qbt.`
 - ROT13 `Gur dhvpx oebja sbk whzcf bire gur ynml qbt.` gives `The quick brown fox jumps over the lazy dog.`