Numerical Expressions with Natural Numbers

The video tutorial introduces numerical expressions with natural numbers, focusing on addition and subtraction. It explains the 'Pacote' rule, which dictates the order of operations involving parentheses, brackets, and braces. The tutorial provides step-by-step solutions to three examples, demonstrating how to apply the rule and solve expressions in the correct order. The video aims to help students understand and solve numerical expressions effectively.

What is the first step in solving a numerical expression according to the 'pacote' rule?

• Solve the operations inside the brackets

• Solve the operations inside the braces

• Solve the operations inside the parentheses

• Solve the operations from left to right

In the first example, what is the result of 50 + 75?

• 175

• 125

• 100

• 150

What is the final result of the first example expression?

• 230

• 131

• 119

• 93

In the second example, what is the result of 16 + 13?

• 32

• 31

• 30

• 29

What is the final result of the second example expression?

• 52

• 93

• 72

• 88

In the third example, what is the result of 21 - 8?

• 13

• 11

• 12

• 14

What is the result of 13 + 7 in the third example?

• 21

• 20

• 19

• 18

What is the final result of the third example expression?

• 65

• 93

• 88

• 76

What is the purpose of the 'pacote' in solving numerical expressions?

• To determine the order of operations

• To simplify the expression

• To add and subtract numbers

• To multiply and divide numbers

What should you do if you encounter both addition and subtraction in a numerical expression?

• Solve subtraction first

• Solve addition first

• Solve in the order they appear from left to right

• Solve in any order