In this unit, we will be exploring integers, which are whole numbers that can be positive or negative. Integers include numbers such as -3, -2, -1, 0, 1, 2, 3, and so on.
Key concepts we will cover in this unit include:
- Understanding the concept of positive and negative numbers
- Adding and subtracting integers
- Multiplying and dividing integers
- Integers on a number line
- Absolute value of integers
Integers can be represented on a number line, with positive numbers to the right of zero and negative numbers to the left of zero.
When adding or subtracting integers, remember these rules:
- To add two numbers with the same sign, add their absolute values and keep the sign.
- To add two numbers with different signs, subtract the absolute values and keep the sign of the larger number.
- To subtract integers, add the opposite.
When multiplying or dividing integers, remember these rules:
- When multiplying two numbers with the same sign, the result is positive.
- When multiplying two numbers with different signs, the result is negative.
- When dividing two numbers with the same sign, the result is positive.
- When dividing two numbers with different signs, the result is negative.
The absolute value of an integer is the distance of the number from zero on the number line, always positive. The absolute value is represented by putting the number inside two vertical bars: |-3| = 3.
By the end of this unit, you will have a solid understanding of integers and be able to perform operations with them confidently. If you have any questions or need help, please don't hesitate to ask!
Classkick integers unit 4 notes
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