QUESTION REVIEW In this article, I will set some Fraction Question. Let see what you got. QUESTION 1. $ 81 \div 3 \div 2 \div 3 $ 2. $ 81 \div 3 \div \frac{2}{3} $ 3. $ 81 \div \frac{3}{2} \div 3 $ 4. $ \frac{81}{3} \div 2 \div 3 $ 5. $ \frac{81}{3} \div \frac{2}{3} $ 6. $ \frac{81}{3} \over \frac{2}{3} $ 7. $ 1\frac{1}{2}3 $ 7. $ 1\frac{1}{2}3 + 2\frac{3}{4}2 - 1\frac{1}{4} $
TOPIC OVERVIEW In this article, I will explain the use of the Commutative Law of Addition , and suggest a better way of thinking about the topic. Please add your ideas in the comments. THE COMMUTATIVE LAW ("change" the order of the numbers or letters) Over the years, people have found that when we add or multiply, the order of the numbers will not affect the outcome. " Switching " or " changing " the order of numbers is called " commuting ". When we change the order of the numbers, we have applied the " Commutative Law ". In an addition problem, it is referred to as the " Commutative Law of Addition " such that Addition on the Real Number ( 2, -5, and $ \frac{2}{7} $ ) S , T it is true that S + T = T + S THE SUM OF 2 REAL NUMBERS Example Real Numbers 2 & 3 Let make S=2 & T=3 Solution S+T = T + S 2+3 = 3 + 2 5 = 5 Note: - This is the sum of 2 positive real numbers. S