Operations on Integers — الرياضيات الصف الأول الإعدادي لغات

الدرس ده من وحدة «Numbers and Their Operations» فى مادة الرياضيات لـالصف الأول الإعدادي لغات على منصة دروسات.

الدرس متاح بالاشتراك: ترم كامل أو المادة لوحدها.

ملخص الدرس

This lesson covers the four basic operations (addition, subtraction, multiplication, and division) on integers. It introduces strategies for adding integers using a number line and the absolute value method, and connects subtraction to adding the additive inverse. The lesson details the sign rules for multiplication and division and lists the fundamental properties of these operations. It also applies these operations to solve real-life problems like temperature changes and submarine depth.

هتتعلم إيه فى الدرس ده

• The set of integers (Z) includes positive numbers, negative numbers, and zero, and is ordered on a number line.
• Addition of integers can be performed using a number line or by comparing absolute values. Subtraction is defined as adding the additive inverse (a - b = a + (-b)).
• Multiplication and division follow specific sign rules: same signs yield a positive result, and opposite signs yield a negative result.
• Properties like closure, commutativity, associativity, and the existence of identities (0 for addition, 1 for multiplication) apply to integer operations.