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Exercise 1:

What does the leprechaun announce at the end of the program?

**This sprite announces 2*(10+1)=2*11=22.**

Exercise 2:

What is the value of the **number** variable at the end of these two programs?

**Program 1: 0+1+1+1+1+1+1+1+1+1+1+1=10**

**Program 2: 0+1+2+3+4+5+6+7+8+9+10=55**

Exercise 3:

What plot do you get with this program?

What is the abscissa of the ball sprite once the program is executed?

**The program executes plot 3.**

Exercise 4:

What does the cat say at the end of the program?

**The program quotes the numbers from the list.**

Exercise 5:

We ran the program and entered 13 and 8.

What were the elf’s responses?

**The elf’s responses are “That doesn’t work for me” and then “Thank you!”.**

Exercise 6:

What does the cat say at the end of the program?

**The cat says the whole list of numbers contained in maliste.**

Exercise 7:

The user has entered the values 15 and 9.

What are the values of variables a and b at the end of each of these two programs?

**Program 1: a=9 and b=15.**

**Program 2: a=9 and b= 9.**

**Program 3: a=9 and b= 9.**

Exercise 8:

If the butterfly touches the bat then the game is lost!

But the program does not work.

Why is this?

**The program does not work because of the “stop-all” brick.**

Exercise 9:

Which instruction calculates 3 + 4×5 – 2?

**This is instruction 4.**

Exercise 10:

Is it possible that the cat announces 750?

What is the maximum number that can be obtained?

**This program will provide as maximum result :**

**.**

**It is impossible for this program to provide 750.**

## The answers to the exercises on Scratch in 4th grade.

After having consulted **the answers to these exercises on Scratch in 8th grade**, you can return to the **exercises in 8th grade**.

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