diff --git a/number-systems/README.md b/number-systems/README.md
index 77a3bde94..337e5a438 100644
--- a/number-systems/README.md
+++ b/number-systems/README.md
@@ -6,60 +6,52 @@ The goal of these exercises is for you to gain an intuition for binary numbers.
 
 Convert the decimal number 14 to binary.
 Answer:
-
+1110
 Convert the binary number 101101 to decimal:
 Answer:
-
+45
 Which is larger: 1000 or 0111?
-Answer:
-
+Answer: 1000
 Which is larger: 00100 or 01011?
-Answer:
-
+Answer:01011
 What is 10101 + 01010?
-Answer:
-
+Answer:01011
 What is 10001 + 10001?
-Answer:
-
+Answer:11111
 What's the largest number you can store with 4 bits, if you want to be able to represent the number 0?
-Answer:
-
+Answer: 15 
 How many bits would you need in order to store the numbers between 0 and 255 inclusive?
-Answer:
-
+Answer: 8 bits
 How many bits would you need in order to store the numbers between 0 and 3 inclusive?
-Answer:
-
+Answer: 2 bits
 How many bits would you need in order to store the numbers between 0 and 1000 inclusive?
-Answer:
-
+Answer: 10 bits
 How can you test if a binary number is a power of two (e.g. 1, 2, 4, 8, 16, ...)?
 Answer:
-
+if the bit have only '1' in it, means i'ts a power of two, if have multiple '1' that's not.
 Convert the decimal number 14 to hex.
-Answer:
+Answer: E 
 
 Convert the decimal number 386 to hex.
-Answer:
+Answer: 0x182
 
 Convert the hex number 386 to decimal.
-Answer:
+Answer:902
 
 Convert the hex number B to decimal.
-Answer:
+Answer: B = 11
 
-If reading the byte 0x21 as a number, what decimal number would it mean?
+If reading the byte 0x21 as a number, what decimal number would it mean?    
 Answer:
-
+33
 If reading the byte 0x21 as an ASCII character, what character would it mean?
-Answer:
+Answer: 0x21 = "!"
 
 If reading the byte 0x21 as a greyscale colour, as described in "Approaches for Representing Colors and Images", what colour would it mean?
-Answer:
+Answer:Dark Grey
 
 If reading the bytes 0xAA00FF as an RGB colour, as described in "Approaches for Representing Colors and Images", what colour would it mean?
-Answer:
+Answer: Purple
 
 If reading the bytes 0xAA00FF as a sequence of three one-byte decimal numbers, what decimal numbers would they be?
-Answer:
+Answer: 170 0 255