Exampes: 10 + 20 = 20 + 10 ANSWER- 50 (1) = 50 ANSWER - 1. 50 + 40 = 40 + 50 - CO 2. 7(1) *7. GO 3. 15 (2) = 2 (15) - 4. (-5) + 5 = 0 - In 5. 30 + (60 + 70 ) = (30 + 60 ) + 70 - Di IV. ESSENTIAL UNDERSTANDING: A. Module 4. Properties of Real Numbers plss po pa answers​