diff --git a/docs/seq-lsi/rom-microcontrollers.md b/docs/seq-lsi/rom-microcontrollers.md
index fe883af1..269f1645 100644
--- a/docs/seq-lsi/rom-microcontrollers.md
+++ b/docs/seq-lsi/rom-microcontrollers.md
@@ -68,10 +68,10 @@ ROM capacity: $2^N \times (2N+K+\log_2 M)$
 {:.quiz}
 
 1. What is the ROM capacity of Counter based µcontroller ?
-   1. 2^N\times(K+\log_2 M)
-   * 2^N\times(N+K+\log_2 M)
-   * 2^{(M+N)}\times(K+N)
-   * 2^M\times(M+N)
+   1. $2^N \times (K + \log_2 M)$
+   * $2^N \times (N + K + \log_2 M)$
+   * $2^{M+N} \times (K + N)$
+   * $2^M \times (M + N)$
 
 2. Which among the following is not micro-controller ?
    1. DMUX based µcontroller
@@ -80,7 +80,7 @@ ROM capacity: $2^N \times (2N+K+\log_2 M)$
    * None
 
 3. What is the ROM capacity of Preset counter based µcontroller ?
-   1. 2^N\times(N+K+\log_2 M)
-   * 2^N\times(K+\log_2 M)
-   * 2^{(M+N)}\times(K+N)
-   * 2^M\times(M+N)
\ No newline at end of file
+   1. $2^N \times (N + K + \log_2 M)$
+   * $2^N \times (K + \log_2 M)$
+   * $2^{M+N} \times (K + N)$
+   * $2^M \times (M + N)$