Keywords in upper case

Name:

Date:

Class:

Quick Questions

Shade in the A or B circle for each question.

1. Which line is written correctly in Cambridge pseudocode?

A if Score > 50 then

B IF Score > 50 THEN

2. Which line correctly finishes an IF statement?

A endif

B ENDIF

3. Which loop header follows the keyword rule?

A WHILE Count < 10 DO

B while Count < 10 do

4. Which is the correct way to close a WHILE loop?

A ENDWHILE

B Endwhile

5. Which variable name is allowed in pseudocode?

A Total

B IF

Match the Pairs

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

Left column		Right column
1IF Score >= 50 THEN OUTPUT "Pass" ENDIF		AWHILE is a keyword, so it cannot be used as an identifier. Use a name such as Counter instead.
2WHILE Count < 5 DO Count ← Count + 1 ENDWHILE		BIF Age >= 16 THEN OUTPUT "Adult" ENDIF
3Every keyword in Cambridge pseudocode, including the one that closes a selection, is written in upper case		CDECLARE Total : INTEGER
4A keyword can never be used as an identifier name, so a variable must have a different name such as Total		DCorrect: WHILE, DO and ENDWHILE are keywords in upper case, while Count is an identifier in Pascal case
5if Score >= 50 THEN OUTPUT "Pass" endif		ECorrect: the keywords IF, THEN, OUTPUT and ENDIF are all written in upper case
6DECLARE WHILE : INTEGER		FThe keywords if and endif are in lower case. They should be IF and ENDIF.

Definitions

Fill in the Blanks

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

__ Mark >= 50 THEN OUTPUT "Pass" ENDIF

IF Mark >= 50 THEN OUTPUT "Pass" _____

_____ Count <= 5 DO Count ← Count + 1 ENDWHILE

WHILE Count <= 5 DO Count ← Count + 1 ________

IF Age >= 18 THEN ______ "Adult" ENDIF

Spot the Error

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

Question 1

A DECLARE Score : INTEGER

B INPUT Score

C IF Score >= 50 THEN

D output "Pass"

E ENDIF

Question 2

A Lives ← 3

B WHILE Lives > 0 DO

C Output Lives

D Lives ← Lives - 1

E ENDWHILE

Question 3

A INPUT Mark

B if Mark > 49 THEN

C OUTPUT "Pass"

D ENDIF

Question 4

A INPUT Number

B OUTPUT ← Number * 2

C OUTPUT Result

Question 5

A for Count ← 1 TO 5

B OUTPUT Count

C NEXT Count

Answer Key

Keywords in upper case

Section A: Quick Questions

B — IF Score > 50 THEN

B — ENDIF

A — WHILE Count < 10 DO

A — ENDWHILE

A — Total

Section B: Match the Pairs

IF Score >= 50 THEN OUTPUT "Pass" ENDIF → Correct: the keywords IF, THEN, OUTPUT and ENDIF are all written in upper case

WHILE Count < 5 DO Count ← Count + 1 ENDWHILE → Correct: WHILE, DO and ENDWHILE are keywords in upper case, while Count is an identifier in Pascal case

Every keyword in Cambridge pseudocode, including the one that closes a selection, is written in upper case → IF Age >= 16 THEN OUTPUT "Adult" ENDIF

A keyword can never be used as an identifier name, so a variable must have a different name such as Total → DECLARE Total : INTEGER

if Score >= 50 THEN OUTPUT "Pass" endif → The keywords if and endif are in lower case. They should be IF and ENDIF.

DECLARE WHILE : INTEGER → WHILE is a keyword, so it cannot be used as an identifier. Use a name such as Counter instead.

Section C: Definitions

IF — IF is a pseudocode keyword. All keywords (IF, ENDIF, WHILE, OUTPUT) are written in upper case and never used as identifier names. Lower case, such as if, is a presentation error.

Section D: Fill in the Blanks

IF Mark >= 50 THEN
  OUTPUT "Pass"
ENDIF

IF Mark >= 50 THEN
  OUTPUT "Pass"
ENDIF

WHILE Count <= 5 DO
  Count ← Count + 1
ENDWHILE

WHILE Count <= 5 DO
  Count ← Count + 1
ENDWHILE

IF Age >= 18 THEN
  OUTPUT "Adult"
ENDIF

Section E: Spot the Error

D — OUTPUT is a keyword, so it must be written in upper case. Lower-case output is a presentation error. The line should be OUTPUT "Pass".

C — Every letter of a keyword must be upper case. Output with a capital O and lower-case letters is wrong. It should be OUTPUT Lives.

B — The keyword IF must be in upper case. The lower-case if is a presentation error. It should be IF Mark > 49 THEN.

B — OUTPUT is a keyword, so it can never be used as an identifier name. The variable needs a different name, such as Result ← Number * 2.

A — FOR is a keyword and must be written in upper case. The line should be FOR Count ← 1 TO 5.