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1-3. Example 1. Lesson 1-3 Example 1. A tricycle has 3 wheels. How many wheels are on 7 tricycles?. 1. Each tricycle has 3 wheels. 1-3. Example 1. Lesson 1-3 Example 1. A tricycle has 3 wheels. How many wheels are on 7 tricycles?. 2. One rule is “add 3 for each tricycle.”.
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1-3 Example 1 Lesson 1-3 Example 1 A tricycle has 3 wheels. How many wheels are on 7 tricycles? 1.Each tricycle has 3 wheels.
1-3 Example 1 Lesson 1-3 Example 1 A tricycle has 3 wheels. How many wheels are on 7 tricycles? 2.One rule is “add 3 for each tricycle.” 3 + 3 + 3 + 3 + 3 + 3 + 3 = 21
1-3 Example 1 Lesson 1-3 Example 1 A tricycle has 3 wheels. How many wheels are on 7 tricycles? 3.Another rule is “multiply by the number of tricycles by 3.” 7 × 3 = 21
1-3 Example 1 Lesson 1-3 Example 1 A tricycle has 3 wheels. How many wheels are on 7 tricycles? 4.No matter which rule is used, there are 21 wheels on 7 tricycles.