part 1 is done

Author: RomanSanaye

number-systems/Part-1.md

@@ -7,46 +7,46 @@ The goal of these exercises is for you to gain an intuition for binary numbers.
 The answers to these questions should be a number, either in binary, hex, or decimal.
 
 Q1: Convert the decimal number 14 to binary.
-Answer:
+Answer: 1110
 
 Q2: Convert the binary number 101101 to decimal:
-Answer:
+Answer:45
 
 Q3: Which is larger: 1000 or 0111?
-Answer:
+Answer: 1000 ==> 1>0 compare from left;
 
 Q4: Which is larger: 00100 or 01011?
-Answer:
+Answer: 01011
 
 Q5: What is 10101 + 01010?
-Answer:
+Answer: 11111
 
 Q6: What is 10001 + 10001?
-Answer:
+Answer: 10001 = 17 + 17 = 34 decimal = 100010 binary
 
 Q7: 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
 
 Q8: How many bits would you need in order to store the numbers between 0 and 255 inclusive?
-Answer:
+Answer: 2 to the power of 8 = 256 so 255 is in range of 256 and the answer is -- 8 -- bit.
 
 Q9: How many bits would you need in order to store the numbers between 0 and 3 inclusive?
-Answer:
+Answer: -- 2 -- bit;
 
 Q10: How many bits would you need in order to store the numbers between 0 and 1000 inclusive?
-Answer:
+Answer: -- 10 -- bit.
 
 Q11: Convert the decimal number 14 to hex.
-Answer:
- 
+Answer:E
+
 Q12: Convert the decimal number 386 to hex.
-Answer:
+Answer: 182
 
 Q13: Convert the hex number 386 to decimal.
-Answer:
+Answer:902
 
 Q14: Convert the hex number B to decimal.
-Answer:
+Answer: 11
 
 Q15: If reading the byte 0x21 as a number, what decimal number would it mean?
 Answer: