A robot on a grid – practice for Years 4–5

Sample questions on A robot on a grid with the right answer and a worked solution, from easy to hard. In the Pickles Academy app a child gets new questions of the same kind every time, so they can't just learn the answers by heart.

Subject

Computing

Year

Years 4–5

Curriculum area

Algorithms and programming

Question types: Where does the robot stop?

Sample questions

1. Question 1 Easy

   The robot runs the program: → ↓ ← ←. Each arrow moves the robot one square that way. Which square does it stop on?

   1. A) square A
   2. B) square B
   3. C) square C
   4. D) square D
   5. E) square E
   Show the solution

   Answer: A) square A

   How it works: The robot stops on square A.

2. Question 2 Normal

   The robot runs the program: → ↓ ← ↓ → ↑ →. Each arrow moves the robot one square that way. Which square does it stop on?

   1. A) square A
   2. B) square B
   3. C) square C
   4. D) square D
   5. E) square E
   Show the solution

   Answer: C) square C

   How it works: The robot stops on square C.

3. Question 3 Hard

   The robot faces the way its arrow points. It runs the program: ⬆ ↻ ⬆ ↻ ⬆ ↺ ⬆ ↻ ⬆. ⬆ = one step forward, ↺ = turn left, ↻ = turn right (on the spot). Which square does it stop on?

   1. A) square A
   2. B) square B
   3. C) square C
   4. D) square D
   5. E) square E
   Show the solution

   Answer: C) square C

   How it works: The robot stops on square C.

All Computing topics