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 1 place forward in the alphabet, what letter does M become?
1 · Shift cipher decoding
2. In a shift cipher where every letter moves 3 places forward in the alphabet, what letter does O become?
3 · Shift cipher decoding
3. In a shift cipher where every letter moves 2 places forward in the alphabet, what letter does P become?
2 · Shift cipher decoding
4. In a shift cipher where every letter moves 6 places forward in the alphabet, what letter does I become?
6 · Shift cipher decoding
5. In a shift cipher where every letter moves 6 places forward in the alphabet, what letter does H become?
6 · Shift cipher decoding
6. In a shift cipher where every letter moves 1 place forward in the alphabet, what letter does O become?
1 · Shift cipher decoding
7. In a shift cipher where every letter moves 5 places forward in the alphabet, what letter does F become?
5 · Shift cipher decoding
8. In a shift cipher where every letter moves 1 place forward in the alphabet, what letter does T become?
1 · Shift cipher decoding
9. In a shift cipher where every letter moves 2 places forward in the alphabet, what letter does T become?
2 · Shift cipher decoding
10. In a shift cipher where every letter moves 1 place forward in the alphabet, what letter does N become?
1 · Shift cipher decoding
11. In a shift cipher where every letter moves 1 place forward in the alphabet, what letter does I become?
1 · Shift cipher decoding
12. In a shift cipher where every letter moves 1 place forward in the alphabet, what letter does Q become?
1 · Shift cipher decoding

12 questions · Seed 64 · 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 1 place forward in the alphabet, what letter does M become?
N
Moving 1 place forward from M reaches N.
2. 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.
3. In a shift cipher where every letter moves 2 places forward in the alphabet, what letter does P become?
R
Moving 2 places forward from P reaches R.
4. In a shift cipher where every letter moves 6 places forward in the alphabet, what letter does I become?
O
Moving 6 places forward from I reaches O.
5. In a shift cipher where every letter moves 6 places forward in the alphabet, what letter does H become?
N
Moving 6 places forward from H reaches N.
6. 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.
7. 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.
8. In a shift cipher where every letter moves 1 place forward in the alphabet, what letter does T become?
U
Moving 1 place forward from T reaches U.
9. In a shift cipher where every letter moves 2 places forward in the alphabet, what letter does T become?
V
Moving 2 places forward from T reaches V.
10. In a shift cipher where every letter moves 1 place forward in the alphabet, what letter does N become?
O
Moving 1 place forward from N reaches O.
11. In a shift cipher where every letter moves 1 place forward in the alphabet, what letter does I become?
J
Moving 1 place forward from I reaches J.
12. In a shift cipher where every letter moves 1 place forward in the alphabet, what letter does Q become?
R
Moving 1 place forward from Q reaches R.

12 questions · Seed 64 · 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 1 place forward in the alphabet, what letter does M become?
1 · Shift cipher decoding
2. In a shift cipher where every letter moves 3 places forward in the alphabet, what letter does O become?
3 · Shift cipher decoding
3. In a shift cipher where every letter moves 2 places forward in the alphabet, what letter does P become?
2 · Shift cipher decoding
4. In a shift cipher where every letter moves 6 places forward in the alphabet, what letter does I become?
6 · Shift cipher decoding
5. In a shift cipher where every letter moves 6 places forward in the alphabet, what letter does H become?
6 · Shift cipher decoding
6. In a shift cipher where every letter moves 1 place forward in the alphabet, what letter does O become?
1 · Shift cipher decoding
7. In a shift cipher where every letter moves 5 places forward in the alphabet, what letter does F become?
5 · Shift cipher decoding
8. In a shift cipher where every letter moves 1 place forward in the alphabet, what letter does T become?
1 · Shift cipher decoding
9. In a shift cipher where every letter moves 2 places forward in the alphabet, what letter does T become?
2 · Shift cipher decoding
10. In a shift cipher where every letter moves 1 place forward in the alphabet, what letter does N become?
1 · Shift cipher decoding
11. In a shift cipher where every letter moves 1 place forward in the alphabet, what letter does I become?
1 · Shift cipher decoding
12. In a shift cipher where every letter moves 1 place forward in the alphabet, what letter does Q become?
1 · Shift cipher decoding

12 questions · Seed 64 · 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 1 place forward in the alphabet, what letter does M become?
N
Moving 1 place forward from M reaches N.
2. 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.
3. In a shift cipher where every letter moves 2 places forward in the alphabet, what letter does P become?
R
Moving 2 places forward from P reaches R.
4. In a shift cipher where every letter moves 6 places forward in the alphabet, what letter does I become?
O
Moving 6 places forward from I reaches O.
5. In a shift cipher where every letter moves 6 places forward in the alphabet, what letter does H become?
N
Moving 6 places forward from H reaches N.
6. 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.
7. 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.
8. In a shift cipher where every letter moves 1 place forward in the alphabet, what letter does T become?
U
Moving 1 place forward from T reaches U.
9. In a shift cipher where every letter moves 2 places forward in the alphabet, what letter does T become?
V
Moving 2 places forward from T reaches V.
10. In a shift cipher where every letter moves 1 place forward in the alphabet, what letter does N become?
O
Moving 1 place forward from N reaches O.
11. In a shift cipher where every letter moves 1 place forward in the alphabet, what letter does I become?
J
Moving 1 place forward from I reaches J.
12. In a shift cipher where every letter moves 1 place forward in the alphabet, what letter does Q become?
R
Moving 1 place forward from Q reaches R.

12 questions · Seed 64 · Age guidance, not curriculum certification