Especialidades JA/Habilidades em matemática III/Requisitos

Habilidades em matemática III

Nível de Habilidade

3

Ano

2012

Version

16.11.2024

Autoridade de Aprovação

Divisão Sul Americana

1. Ter a especialidade Habilidades em matemática II.

2. Resolver as seguintes operações usando o algoritmo tradicional:

a. 641 + 135

b. 845 - 124

c. 34 x 125

d. 856 ÷ 24

3. Identificar e classificar os conjuntos numéricos.

4. Demonstrar habilidade de resolver as seguintes equações:

a. 2x - 10 = -4x + 14

b.

18x - 43 = 65

c.

23x - 16 = 14 - 17x

d.

10y - 5(1 + y) = 3(2y - 2) - 20

e.

x(x + 4) + x(x + 2) = 2x² + 12

f.

(x - 5) / 10 + (1 - 2x) / 5 = (3-x) / 4

g.

4x(x + 6) - x² = 5x²

5.

Demonstrate the ability to solve the following products:

a.

(x + 3y)²

b.

(a⁵ + 2bc)²

c.

(3x + y²)²

d.

(1 + 5m)(1 - 5m)

e.

(ab - c)²

f.

(m - 1)³

g.

(a³ - b³) (a³ + b³)

6.

Calculate the area of ​​the following figures:

7.

In the Orienteering honor, the Pathfinder must have knowledge of angles to know how to use cartographic charts and to use a compass. Demonstrate the ability to convert angles to minutes, minutes to seconds, showing three practical examples.

8.

In the Pioneering honor, we learned to build camp furniture, which has a whole mathematical relationship. Design and present some camp furniture where geometric shapes appear and classify each one. Cite three examples.

9.

Present a poster showing ten practical examples of geometric figures used in a daily routine. It can be as cutouts, photos or design.

10.

Demonstrate the ability to solve the following proportion problems:

a.

At 60 km/h I travel between two cities in two hours. Traveling at 80 km/h, what is the estimated time to travel this route?

b.

At an average of 90 km/h, I can make a journey in three hours. To make this journey in just two hours, what should my average speed be?

c.

If 20 men working for 20 days build 500 meters of a wall, how many men will it take to build 1000 meters more of this wall in 30 days?

11.

Demonstrate the ability to solve problem situations involving equations:

a.

I have the following choice: I buy 20 units of a product with all the money I have, or buy only 14 units of a project with all the money I have, or buy only 14 units and I still have $15.00 in change. What is the unit value of this product?

b.

What is the root of the equation 7x - 2 = -4x + 5?

c.

If I add 8 to the amount of toy cars I own, I will have the same amount of cars as my brother if, of the 28 that he owns, the amount that I own is subtracted. How many toy cars do I have?