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Grade 6 Robot Algorithms on a Grid Worksheet with Answers

Grade 6 (US) · Year 7 (UK) · Class 6 (India) · Computer Science

Unit 2: AlgorithmsStep-by-Step InstructionsCSTA 2-AP-10

Following a robot's step-by-step commands on a grid to find where it ends up — sequencing and debugging. This free middle school worksheet has 12 questions and a full answer key. Print it or save it as a PDF — every answer is checked by code, not guessed.

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Robot Algorithms on a Grid

Grade 6 · Computer Science

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Learning goal: Step-by-Step Instructions · CSTA 2-AP-10

Directions: Read each question carefully and write your answer on the line. Use the diagram to help you.

RememberAlgorithms

Sequencesteps in orderSelectionif … else …choose a pathIterationrepeat / loopdo it again
  1. 1

    The robot follows: F R F F L F. Which square does it end on?

    A1B2C3D4E5CommandsF R F F L FF = forward 1L / R = turn left / right
  2. 2

    The robot follows: F L F L F F. Which square does it end on?

    A1B2C3D4E5CommandsF L F L F FF = forward 1L / R = turn left / right
  3. 3

    The robot follows: F F F F R F. Which square does it end on?

    A1B2C3D4E5CommandsF F F F R FF = forward 1L / R = turn left / right
  4. 4

    The robot follows: F F L F R F. Which square does it end on?

    A1B2C3D4E5CommandsF F L F R FF = forward 1L / R = turn left / right
  5. 5

    The robot follows: F R R F F F. Which square does it end on?

    A1B2C3D4E5CommandsF R R F F FF = forward 1L / R = turn left / right
  6. 6

    The robot follows: F R R F L F. Which square does it end on?

    A1B2C3D4E5CommandsF R R F L FF = forward 1L / R = turn left / right
  7. 7

    The robot follows: F R R F L F. Which square does it end on?

    A1B2C3D4E5CommandsF R R F L FF = forward 1L / R = turn left / right
  8. 8

    The robot follows: F R F R R F. Which square does it end on?

    A1B2C3D4E5CommandsF R F R R FF = forward 1L / R = turn left / right
  9. 9

    The robot follows: F L F F R F. Which square does it end on?

    A1B2C3D4E5CommandsF L F F R FF = forward 1L / R = turn left / right
  10. 10

    The robot follows: F L L F R F. Which square does it end on?

    A1B2C3D4E5CommandsF L L F R FF = forward 1L / R = turn left / right
  11. 11

    The robot follows: F L F R F F. Which square does it end on?

    A1B2C3D4E5CommandsF L F R F FF = forward 1L / R = turn left / right
  12. 12

    The robot follows: F R F F F F. Which square does it end on?

    A1B2C3D4E5CommandsF R F F F FF = forward 1L / R = turn left / right

★ Challenge corner for fast finishers

What is the largest whole number you can store in 4 bits?

81412111

How did I do?

Teacher's comments

Free printable worksheets with answer keys · aethelsystems.com/worksheets/computer/6/robot_commands

Answer key (click to show)
  1. 1.A2
  2. 2.A3
  3. 3.E2
  4. 4.C1
  5. 5.B5
  6. 6.B2
  7. 7.C1
  8. 8.E4
  9. 9.C2
  10. 10.B3
  11. 11.C2
  12. 12.A4
  13. ★15 (challenge corner)

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