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ALGEBRA Solving and explaining simple one-step equations using basic whole-number facts: x + 7 = 15 what number + 7 = 15? 8 + 7 = 15 x = 8 Let’s try another one: 10 – y = 2 10 – what number = 2 10 – 8 = 2 y = 8 © Copyright NewPath Learning. All Rights Reserved. Permission is granted for the purchaser to print copies for non-commercial educational purposes only. Visit us at www.NewPathLearning.com.

Solving and explaining simple one-step equations using inverse operations involving whole numbers: Addition and subtraction are inverse operations. 5 + 3 = 8 you can reverse it 8 – 3 = 5 Multiplication and division are inverse operations too. 2 x 3 = 6 you can reverse it 6 ÷ 3 = 2 You can use inverse operations to figure out these one- step algebra problems as well: r ÷ 2 = 5 You can figure out the value of r by multiplying 5 x 2 = 5 x 2 = 10 r ÷ 2 = 5 r = 10 (because 5 x 2 = 10) Let’s try another one: b x 3 = 15 Dividing 15 ÷ 3 = 15 ÷ 3 = 5 b x 3 = 15 b = 5 (because 15 ÷ 3 = 5) © Copyright NewPath Learning. All Rights Reserved. Permission is granted for the purchaser to print copies for non-commercial educational purposes only. Visit us at www.NewPathLearning.com.