Free Grade 7 Computer Science Worksheets with Answers

Grade 7 Binary Numbers

2-DA-07

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

e.g. Write the decimal number 194 in binary.

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Grade 7 Bits, Bytes & Data Sizes

2-DA-07

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

e.g. How many kilobytes (KB) are in 8 MB? (Use 1 MB = 1,000 KB.)

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Grade 7 Spreadsheet Formulas

2-DA-08

Working out what spreadsheet formulas like =SUM, =AVERAGE, =MAX and =B2*C2 will show.

e.g. In the spreadsheet (A1=11, B1=2, C1=3; A2=2, B2=29, C2=18; A3=12, B3=20, C3=28; A4=16, B4=24, C4=12), what does the formula =A2*B2 show?

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Grade 7 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 B2 facing east. F = move forward 1, L = turn left, R = turn right. Commands: F F L F F F. Which square does it end on?

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Grade 7 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 0. The loop repeats 7 times: total = total + 5. What is total at the end?

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Grade 7 Flowcharts

2-AP-10

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

e.g. Flowchart: input x = 15. Is x > 10? If yes, output x − 7. If no, output x × 3. What is output?

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Grade 7 Boolean Expressions

2-AP-12

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

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

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Grade 7 Logic Gates

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

e.g. The input to a NOT gate is 1. What is the output?

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Grade 7 Networks & the Internet

2-NI-04

How networks move data: devices, IP addresses, packets and download times.

e.g. A 12 MB file is split into packets of 1.5 MB. How many packets are sent?

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Grade 7 Cybersecurity & Passwords

2-NI-05

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

e.g. A PIN has 3 digits (0–9). How many different PINs are possible?

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Grade 7 Tracing Code (Python)

Advanced2-AP-12

Reading short Python programs with variables, if/else and loops and working out what they print.

e.g. word = "ALGORITHM". What does print(word[1] + word[-1]) print?

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Grade 7 Computing Challenge Puzzles

Challenge

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

e.g. How many different patterns can 4 bits make?

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