New Concept This course expands your understanding of numbers beyond simple counting. We will explore positive and negative numbers, fractions, and decimals to build a complete mathematical foundation. What’s next To begin, we'll focus on the rules for adding positive and negative numbers. Next, you’ll tackle worked examples with integers, fractions, and real world scenarios.
Section 1
📘 Adding Positive and Negative Numbers
This course expands your understanding of numbers beyond simple counting. We will explore positive and negative numbers, fractions, and decimals to build a complete mathematical foundation.
To begin, we'll focus on the rules for adding positive and negative numbers. Next, you’ll tackle worked examples with integers, fractions, and real-world scenarios.
Section 2
The sum of two numbers with the same sign
The sum of two numbers with the same sign has an absolute value equal to the sum of their absolute values. Its sign is the same as the sign of the numbers.
Section 3
The sum of two numbers with opposite signs
The sum of two numbers with opposite signs has an absolute value equal to the difference of their absolute values. Its sign is the same as the sign of the number with the greater absolute value.
Section 4
The sum of two opposites is zero
The sum of two opposites is zero. For any number , this rule can be written as .
Book overview
Jump across lessons in the current chapter without opening the full course modal.
Continue this chapter
Expand to review the lesson summary and core properties.
Section 1
📘 Adding Positive and Negative Numbers
This course expands your understanding of numbers beyond simple counting. We will explore positive and negative numbers, fractions, and decimals to build a complete mathematical foundation.
To begin, we'll focus on the rules for adding positive and negative numbers. Next, you’ll tackle worked examples with integers, fractions, and real-world scenarios.
Section 2
The sum of two numbers with the same sign
The sum of two numbers with the same sign has an absolute value equal to the sum of their absolute values. Its sign is the same as the sign of the numbers.
Section 3
The sum of two numbers with opposite signs
The sum of two numbers with opposite signs has an absolute value equal to the difference of their absolute values. Its sign is the same as the sign of the number with the greater absolute value.
Section 4
The sum of two opposites is zero
The sum of two opposites is zero. For any number , this rule can be written as .
Book overview
Jump across lessons in the current chapter without opening the full course modal.
Continue this chapter