French philosopher, Rene Descartes, had a huge impact on mathematics. He helped usher in analytical geometry, developing a system describing geometry using algebra, and created much of the foundation for the work carried out later by Leibniz and Newton.

#### 1. Let’s start! Take a look at all of these blocks. You can reach the number 10 by adding the blocks in many different ways. BUT, what is the LEAST number of blocks you need to add together in order to reach the number 10?

- Two
- Three
- Four
- Five

✔️**Right Answer: Three**

#### 2. How about here? What is the LEAST number of blocks you need to add together in order to reach the number 10?

- Two
- Three
- Four
- Five

✔️**Right Answer: Four**

#### 3. Take a look at these blocks! What is the LEAST amount of blocks you need to add together in order to reach the number 10?

- Two
- Three
- Four
- Five

✔️**Right Answer: Three**

#### 4. What is the LEAST number of blocks you need to add together in order to reach the number 10?

- Two
- Three
- Four
- Five

✔️**Right Answer: Three**

#### 5. What percentage of the blocks are red?

- 10%
- 15%
- 20%
- 25%

✔️**Right Answer: 20%**

#### 6. What percentage of the blocks are red?

- 30%
- 40%
- 50%
- 60%

✔️**Right Answer: 60%**

#### 7. Can you figure out what percentage below is closest to the percentage of blue blocks?

- 13%
- 16%
- 17%
- 23%

✔️**Right Answer: 16%**

#### 8. Can you figure out which block is the heaviest?

- A
- B
- C
- D

✔️**Right Answer: A**

#### 9. Which block is the heaviest here?

- A
- B
- C
- D

✔️**Right Answer: B**

#### 10. Can you figure out the value of the red block?

- 5
- 8
- 10
- 15

✔️**Right Answer: 5**

#### 11. What is the value of the two orange blocks?

- 14
- 18
- 22
- 24

✔️**Right Answer: 24**

#### 12.1. Think you can figure out the top view of this blocky shape? Be careful! The answer choices might be rotated!

- A
- B
- C
- D

✔️**Right Answer: A**

#### 12.2. Think you can figure out the top view of this blocky shape? Be careful! The answer choices might be rotated!

- A
- B
- C
- D

✔️**Right Answer: B**

#### 13. What is the top view of this shape? Click on one of the answer choices below!

#### 14. Think you can figure out what comes next?

- A
- B
- C
- D

✔️**Right Answer: D**

#### 15. How about here? Think you can figure out what comes next?

- A
- B
- C
- D

✔️**Right Answer: D**

#### 16. If you look at this shape from the direction of the arrow, what will it look like? Choose the answer from the images below!

#### 17. If you look at this object from the direction of the arrow, what will it look like? Choose your answer from one of the images below!

#### 18. If you look at this object from the top, what will it look like? Choose you answer from one of the images below!

#### 19. Can you figure out what will balance the bottom scale?

- A
- B
- C
- D

✔️**Right Answer: B**