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### Grade 3 - Mathematics2.9 Multiplication and Division as Inverse Operations

 An inverse operation reverses another operation. Addition and subtraction are inverses of each other. Example: The addition fact 9 + 5 = 14 can be written as subtraction fact as 14 - 5 = 9 or 14 - 9 = 5 Similarly, multiplication and division are inverses of each other. Example: The multiplication fact 11 × 5 = 55 can be written as division fact as 55 ÷ 5 = 11 or 55 ÷ 11 = 5 Directions: Answer the following questions. Also write at least ten examples for multiplication and division as inverse operations.
 Q 1: 4 x 5 = 20. What is the inverse operation?20 ÷ 5 = 420 ÷ 10 = 25 ÷ 4 = 20 Q 2: 15 x 10 = 150. What is the inverse operation?both150 ÷ 10 = 15150 ÷ 15 = 10 Q 3: 35 ÷ 7 = 5. What is the inverse operation?35 ÷ 5 = 77 ÷ 35 = 57 x 5 = 35 Q 4: 48 ÷ 6 = 8. What is the inverse operation?8 x 8 = 646 x 6 = 368 x 6 = 48 Q 5: 54 ÷ 9 = 6. What is the inverse operation?9 x 6 = 5454 x 9 = 654 ÷ 6 = 9 Q 6: 5 x 8 = 40. What is the inverse operation?8 x 5 = 4040 ÷ 5 = 440 ÷ 5 = 8 Q 7: 6 x 11 = 66. What is the inverse operation?6 ÷ 66 = 1111 x 6 = 6666 ÷ 6 = 11 Q 8: 7 x 8 = 56. What is the inverse operation?56 ÷ 7 = 58 ÷ 7 = 156 ÷ 7 = 8 Question 9: This question is available to subscribers only! Question 10: This question is available to subscribers only!

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