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Published byWhitney Powell Modified over 8 years ago
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Lesson 1-3 Example 3 1-3 What number goes in the blank to make (7 + 5) + 4 = ___ + (14 – 2) a true equation? Step 1 The expressions inside the parentheses have the same value. 7 + 5 = 12 14 – 2 = 12
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Lesson 1-3 Example 3 1-3 What number goes in the blank to make (7 + 5) + 4 = ___ + (14 – 2) a true equation? Step 2 Identify and apply the correct property to find the missing number. Use the Addition Property of Equality. (7 + 5) + 4 = 4 + (14 – 2)
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Lesson 1-3 Example 3 1-3 What number goes in the blank to make (7 + 5) + 4 = ___ + (14 – 2) a true equation? Step 3 Check: (7 + 5) + 4 = 4 + (14 – 2) 12 + 4=4 + 12 16=16
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