Free Grade 6 Computer Science Worksheets with Answers

Grade 6 Binary Numbers

2-DA-07

Converting between binary and decimal with place values 1, 2, 4, 8 … and adding binary numbers.

e.g. What is the binary number 1010 in decimal?

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Grade 6 Bits, Bytes & Data Sizes

2-DA-07

Converting between bits, bytes, KB, MB and GB, and working out file sizes and storage.

e.g. A memory card holds 8 GB. Each photo is 4 MB. How many photos fit? (Use 1 GB = 1,000 MB.)

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Grade 6 Robot Algorithms on a Grid

2-AP-10

Following a robot's step-by-step commands on a grid to find where it ends up — sequencing and debugging.

e.g. A robot starts on square C4 facing south. F = move forward 1, L = turn left, R = turn right. Commands: F R F F L F. Which square does it end on?

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Grade 6 Flowcharts

2-AP-10

Following flowcharts with decisions and loops to find the output for a given input.

e.g. Flowchart: input x = 11. Is x > 5? If yes, output x − 8. If no, output x × 4. What is output?

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Grade 6 Tracing Loops

2-AP-12

Tracing repeat and nested loops to find the final value or the number of times something happens.

e.g. total starts at 1. The loop repeats 4 times: total = total × 3. What is total at the end?

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Grade 6 Variables & Data Types

2-AP-11

Recognising integers, floats, strings and Booleans, and how operators behave on each.

e.g. What data type is the value 945: integer, float, string, or Boolean?

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Grade 6 Cybersecurity & Passwords

2-NI-05

Password strength by counting combinations, spotting threats, and simple encryption.

e.g. A Caesar cipher moved every letter 2 forward. Decrypt: FCVC

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Grade 6 Logic Gates

Advanced

Working out the outputs of AND, OR, NOT and XOR gates and small logic circuits.

e.g. An AND gate has inputs A = 1 and B = 1. What is the output?

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Grade 6 Boolean Expressions

Advanced

Evaluating Boolean expressions with AND, OR and NOT, including comparisons.

e.g. What is the value of not (True and True) or True?

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Grade 6 Computing Challenge Puzzles

Challenge

Puzzles that stretch computational thinking: bit patterns, logic and clever counting.

e.g. How many different patterns can 5 bits make?

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