IGCSE Computer Science Paper 2 Word Scramble: 7d Standard Methods of Solution (Modules 265–274)
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Word scramble
Unscramble the letters and write each key term on the line.
1
+ - * / VID DMO
Arithmetic operators: + - * / calculate with numbers, and / gives a real result. DIV gives the whole-number quotient and MOD the remainder, so 17 DIV 5 is 3 and 17 MOD 5 is 2.
2
NDA, RO, OTN
Logic operators that combine or reverse conditions: AND needs both true, OR needs one true, NOT reverses a condition. Range test: Number >= 1 AND Number <= 10
3
FI NICNDITOO EHTN ... NDIEF
Runs the indented lines between THEN and ENDIF only when the condition is TRUE. If it is FALSE, those lines are skipped. Every IF must be closed with its own ENDIF.
4
LEES
Starts the lines that run when the IF condition is FALSE. Exactly one branch runs: THEN or ______, never both. ______ has no condition of its own.
5
RFO TONCU ← 1 OT 01
Repeats the lines up to NEXT Count a fixed number of times. Count starts at 1, goes up automatically, and both the start and end values are included. STEP changes the jump.
6
HIWLE INNDTOOCI OD
A loop that tests the condition first and repeats its body while it is TRUE. The body may run zero times, and it must change the variable or the loop never ends.
7
PTEARE ... ILUTN IINCDTONO
A loop that runs its lines first, then checks the UNTIL condition. It stops when the condition is TRUE, so the body always runs at least once.
8
ORF, HWLEI, AEPTRE
Use FOR when the number of repeats is known. Use WHILE (tests at the start) or REPEAT (tests at the end) when repeating depends on a condition.
Answer Key
IGCSE Computer Science Paper 2 · Modules 265–274
1+ - * / VID DMO → + - * / DIV MOD — Arithmetic operators: + - * / calculate with numbers, and / gives a real result. DIV gives the whole-number quotient and MOD the remainder, so 17 DIV 5 is 3 and 17 MOD 5 is 2.
2NDA, RO, OTN → AND, OR, NOT — Logic operators that combine or reverse conditions: AND needs both true, OR needs one true, NOT reverses a condition. Range test: Number >= 1 AND Number <= 10
3FI NICNDITOO EHTN ... NDIEF → IF condition THEN ... ENDIF — Runs the indented lines between THEN and ENDIF only when the condition is TRUE. If it is FALSE, those lines are skipped. Every IF must be closed with its own ENDIF.
4LEES → ELSE — Starts the lines that run when the IF condition is FALSE. Exactly one branch runs: THEN or ELSE, never both. ELSE has no condition of its own.
5RFO TONCU ← 1 OT 01 → FOR Count ← 1 TO 10 — Repeats the lines up to NEXT Count a fixed number of times. Count starts at 1, goes up automatically, and both the start and end values are included. STEP changes the jump.
6HIWLE INNDTOOCI OD → WHILE condition DO — A loop that tests the condition first and repeats its body while it is TRUE. The body may run zero times, and it must change the variable or the loop never ends.
7PTEARE ... ILUTN IINCDTONO → REPEAT ... UNTIL condition — A loop that runs its lines first, then checks the UNTIL condition. It stops when the condition is TRUE, so the body always runs at least once.
8ORF, HWLEI, AEPTRE → FOR, WHILE, REPEAT — Use FOR when the number of repeats is known. Use WHILE (tests at the start) or REPEAT (tests at the end) when repeating depends on a condition.