Operations on Rational Numbers — 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 explores the set of rational numbers, which includes all numbers that can be written as a fraction a/b where b is not zero. It covers the four basic operations on rational numbers: addition, subtraction, multiplication, and division. The lesson shows how to add and subtract fractions with like and unlike denominators, how to multiply and divide them, and how to use properties of operations to simplify calculations. It also covers converting between fractions, decimals, and percentages.

هتتعلم إيه فى الدرس ده

• A rational number is any number that can be expressed as a fraction a/b where a and b are integers and b ≠ 0.
• To add or subtract fractions, they must have a common denominator. Multiplication involves multiplying numerators and denominators directly.
• Division of fractions is performed by multiplying by the reciprocal (multiplicative inverse) of the divisor.
• Properties of operations (commutative, associative, identities) apply to rational numbers and can be used to simplify calculations.