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In this lesson, we explore the concept of inverse operations, focusing on multiplication and division. Students will learn how these operations undo each other through practical examples and problems. We'll engage in a warm-up activity involving various math expressions and move on to practice problems that reinforce the understanding of division equations. By the end of the lesson, students will confidently solve equations involving variables and apply their knowledge to real-life scenarios, like calculating distances and ingredient measures in recipes.
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Equations x/÷ Lessons 2-7 & 2-8
Warm- up 4 • (3 x 2) + (12 ÷ 3) – 6 • 2 x 6 + 4 – 10 ÷ 2 • 43 ÷ 8 x 2 – 6 + 12 • 18 ÷ 3 + (72 ÷ 9) x 2 - 5 11 22 17
Review • Inverse Operation: Pairs of operations that undo each other. • Multiplication and division are inverse operations.For example, 2 x 3 = 6, reversely 6 ÷ 3 = 2.
Problems to Practice • y ÷ 12 = 60 • There are 8 ounces in one cup. A recipe calls for 3 cups of flour. Using the variable h, write and solve a division equation to find how many ounces are in the recipe.
Problems to Practice • 7x = 63 • p = 15 5 • A man rode his bicycle 4 miles per hour. Using the variable h, write and solve a multiplication equation to find how many hours he would ride if he covered a distance of 60 miles.
