ReasoningAges 10-12

Shift cipher decoding

Apply a fixed forward alphabet shift to encode or decode a letter accurately. Review suitability for your learners before teaching.

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Age band:Ages 10-12 Ages 13-15

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Worksheet StudioPractice pack · Ages 10-12

Shift cipher decoding

Take your time. Show your thinking.

1. In a shift cipher where every letter moves 2 places forward in the alphabet, what letter does R become?
2 · Shift cipher decoding
2. In a shift cipher where every letter moves 6 places forward in the alphabet, what letter does R become?
6 · Shift cipher decoding
3. In a shift cipher where every letter moves 6 places forward in the alphabet, what letter does O become?
6 · Shift cipher decoding
4. In a shift cipher where every letter moves 6 places forward in the alphabet, what letter does D become?
6 · Shift cipher decoding
5. In a shift cipher where every letter moves 3 places forward in the alphabet, what letter does K become?
3 · Shift cipher decoding
6. In a shift cipher where every letter moves 5 places forward in the alphabet, what letter does K become?
5 · Shift cipher decoding
7. In a shift cipher where every letter moves 6 places forward in the alphabet, what letter does A become?
6 · Shift cipher decoding
8. In a shift cipher where every letter moves 5 places forward in the alphabet, what letter does D become?
5 · Shift cipher decoding
9. In a shift cipher where every letter moves 3 places forward in the alphabet, what letter does O become?
3 · Shift cipher decoding
10. In a shift cipher where every letter moves 3 places forward in the alphabet, what letter does E become?
3 · Shift cipher decoding
11. In a shift cipher where every letter moves 1 place forward in the alphabet, what letter does O become?
1 · Shift cipher decoding
12. In a shift cipher where every letter moves 5 places forward in the alphabet, what letter does F become?
5 · Shift cipher decoding

12 questions · Seed 104734 · Age guidance, not curriculum certification

View the answer key

Worksheet StudioAnswer key · Ages 10-12

Shift cipher decoding

Answers and reasoning. Review before teaching.

1. In a shift cipher where every letter moves 2 places forward in the alphabet, what letter does R become?
T
Moving 2 places forward from R reaches T.
2. In a shift cipher where every letter moves 6 places forward in the alphabet, what letter does R become?
X
Moving 6 places forward from R reaches X.
3. In a shift cipher where every letter moves 6 places forward in the alphabet, what letter does O become?
U
Moving 6 places forward from O reaches U.
4. In a shift cipher where every letter moves 6 places forward in the alphabet, what letter does D become?
J
Moving 6 places forward from D reaches J.
5. In a shift cipher where every letter moves 3 places forward in the alphabet, what letter does K become?
N
Moving 3 places forward from K reaches N.
6. In a shift cipher where every letter moves 5 places forward in the alphabet, what letter does K become?
P
Moving 5 places forward from K reaches P.
7. In a shift cipher where every letter moves 6 places forward in the alphabet, what letter does A become?
G
Moving 6 places forward from A reaches G.
8. In a shift cipher where every letter moves 5 places forward in the alphabet, what letter does D become?
I
Moving 5 places forward from D reaches I.
9. In a shift cipher where every letter moves 3 places forward in the alphabet, what letter does O become?
R
Moving 3 places forward from O reaches R.
10. In a shift cipher where every letter moves 3 places forward in the alphabet, what letter does E become?
H
Moving 3 places forward from E reaches H.
11. In a shift cipher where every letter moves 1 place forward in the alphabet, what letter does O become?
P
Moving 1 place forward from O reaches P.
12. In a shift cipher where every letter moves 5 places forward in the alphabet, what letter does F become?
K
Moving 5 places forward from F reaches K.

12 questions · Seed 104734 · Age guidance, not curriculum certification

Worksheet StudioPractice pack · Ages 10-12

Shift cipher decoding

Take your time. Show your thinking.

1. In a shift cipher where every letter moves 2 places forward in the alphabet, what letter does R become?
2 · Shift cipher decoding
2. In a shift cipher where every letter moves 6 places forward in the alphabet, what letter does R become?
6 · Shift cipher decoding
3. In a shift cipher where every letter moves 6 places forward in the alphabet, what letter does O become?
6 · Shift cipher decoding
4. In a shift cipher where every letter moves 6 places forward in the alphabet, what letter does D become?
6 · Shift cipher decoding
5. In a shift cipher where every letter moves 3 places forward in the alphabet, what letter does K become?
3 · Shift cipher decoding
6. In a shift cipher where every letter moves 5 places forward in the alphabet, what letter does K become?
5 · Shift cipher decoding
7. In a shift cipher where every letter moves 6 places forward in the alphabet, what letter does A become?
6 · Shift cipher decoding
8. In a shift cipher where every letter moves 5 places forward in the alphabet, what letter does D become?
5 · Shift cipher decoding
9. In a shift cipher where every letter moves 3 places forward in the alphabet, what letter does O become?
3 · Shift cipher decoding
10. In a shift cipher where every letter moves 3 places forward in the alphabet, what letter does E become?
3 · Shift cipher decoding
11. In a shift cipher where every letter moves 1 place forward in the alphabet, what letter does O become?
1 · Shift cipher decoding
12. In a shift cipher where every letter moves 5 places forward in the alphabet, what letter does F become?
5 · Shift cipher decoding

12 questions · Seed 104734 · Age guidance, not curriculum certification

Worksheet StudioAnswer key · Ages 10-12

Shift cipher decoding

Answers and reasoning. Review before teaching.

1. In a shift cipher where every letter moves 2 places forward in the alphabet, what letter does R become?
T
Moving 2 places forward from R reaches T.
2. In a shift cipher where every letter moves 6 places forward in the alphabet, what letter does R become?
X
Moving 6 places forward from R reaches X.
3. In a shift cipher where every letter moves 6 places forward in the alphabet, what letter does O become?
U
Moving 6 places forward from O reaches U.
4. In a shift cipher where every letter moves 6 places forward in the alphabet, what letter does D become?
J
Moving 6 places forward from D reaches J.
5. In a shift cipher where every letter moves 3 places forward in the alphabet, what letter does K become?
N
Moving 3 places forward from K reaches N.
6. In a shift cipher where every letter moves 5 places forward in the alphabet, what letter does K become?
P
Moving 5 places forward from K reaches P.
7. In a shift cipher where every letter moves 6 places forward in the alphabet, what letter does A become?
G
Moving 6 places forward from A reaches G.
8. In a shift cipher where every letter moves 5 places forward in the alphabet, what letter does D become?
I
Moving 5 places forward from D reaches I.
9. In a shift cipher where every letter moves 3 places forward in the alphabet, what letter does O become?
R
Moving 3 places forward from O reaches R.
10. In a shift cipher where every letter moves 3 places forward in the alphabet, what letter does E become?
H
Moving 3 places forward from E reaches H.
11. In a shift cipher where every letter moves 1 place forward in the alphabet, what letter does O become?
P
Moving 1 place forward from O reaches P.
12. In a shift cipher where every letter moves 5 places forward in the alphabet, what letter does F become?
K
Moving 5 places forward from F reaches K.

12 questions · Seed 104734 · Age guidance, not curriculum certification