Converting a word to ASCII decimal codes

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Quick Questions

Shade in the A or B circle for each question.

1. Which list gives the ASCII decimal codes for the word "Hi"?

A 105 72

B 72 105

2. Which statement about the letters A and a is true in ASCII?

A A is 65 and a is 97

B A and a are both 65

3. Which list gives the ASCII decimal codes for the name "Mia"?

A 109 105 97

B 77 105 97

4. How many ASCII codes do you write for the word "Jack"?

A 4 codes, one for each character

B 1 code for the whole word

5. Which list gives the ASCII decimal codes for "Cat"?

A 67 97 116

B 99 97 116

Match the Pairs

Draw a line connecting each item on the left to its match on the right.

Left column		Right column
1Sam = 83 97 109		ALeo = 76 101 111
2A = 65, a = 97		BThe capital A was given the lowercase code. Capital A is 65, so the answer should be 65 118 97.
3Write the ASCII code for each letter in the same order as the letters in the word, checking each character once		CA capital letter and its lowercase letter have different ASCII codes, so they must be kept separate
4The same letter has two different codes depending on whether it is a capital or lowercase		DThe codes are in the wrong order. The word is M, i, a, so the codes should be 77 105 97.
5Mia = 77 97 105		EM = 77, m = 109
6Ava = 97 118 97		FS is 83, a is 97 and m is 109, written in the same order as the letters in the word

Definitions

ASCII decimal code

Fill in the Blanks

Complete each line of code by filling in the missing parts.

=____("H")

Hi = H is 72, i is ___

A is 65, so a is __

FOR EACH letter __ "Sam" OUTPUT CODE(letter) END FOR

=CODE(MID(A1,_,1))

Spot the Error

Shade in the letter of the line that contains an error.

Question 1

A word = "Hi"

B H = 73

C i = 105

D codes = 72 105

Question 2

A word = "Cat

B C = 67

C a = 97

D t = 116

Question 3

A for ch in "Zoe"

B print(ord(ch))

C # Z = 90, o = 111, e = 101

Question 4

A word: Ava

B A = 65

C v = 118

D a = 65

E codes: 65 118 97

Question 5

A name = "Leo"

B for ch in len(name):

C print(ord(ch))

Answer Key

Converting a word to ASCII decimal codes

Section A: Quick Questions

B — 72 105

A — A is 65 and a is 97

B — 77 105 97

A — 4 codes, one for each character

A — 67 97 116

Section B: Match the Pairs

Sam = 83 97 109 → S is 83, a is 97 and m is 109, written in the same order as the letters in the word

A = 65, a = 97 → A capital letter and its lowercase letter have different ASCII codes, so they must be kept separate

Write the ASCII code for each letter in the same order as the letters in the word, checking each character once → Leo = 76 101 111

The same letter has two different codes depending on whether it is a capital or lowercase → M = 77, m = 109

Mia = 77 97 105 → The codes are in the wrong order. The word is M, i, a, so the codes should be 77 105 97.

Ava = 97 118 97 → The capital A was given the lowercase code. Capital A is 65, so the answer should be 65 118 97.

Section C: Definitions

ASCII decimal code — Look up each character in the ASCII table and write its decimal number in order. Capitals and lowercase differ, so Hi is 72 105 (H is 72, i is 105).

Section D: Fill in the Blanks

=CODE("H")

Hi = H is 72, i is 105

A is 65, so a is 97

FOR EACH letter IN "Sam"
  OUTPUT CODE(letter)
END FOR

=CODE(MID(A1,2,1))

Section E: Spot the Error

B — Capital H is 72 in the ASCII table. 73 is capital I. The line should be H = 72.

A — The string is missing its closing quote. It should be word = "Cat".

A — A for loop line must end with a colon. It should be for ch in "Zoe":

D — Lowercase a is 97. 65 is capital A. Capitals and lowercase have different codes, so it should be a = 97.

B — len(name) gives a number (3), which can't be looped over to check each character. It should be for ch in name:.