Grade 4, Unit 5 , Section A: Additional Practice Problems 1. a. Andre has the following cubes, and Noah has 3 times as many. What number is 3 times as many cubes? b. Lin has the following cubes, and Clare has 7 times as many. What number shows 7 times as many as 3 ?

Sure, let's tackle each problem step by step. --- ### **1. a. Andre and Noah's Cubes** **Problem Statement:** Andre has some cubes, and Noah has **3 times** as many cubes as Andre. **Question:** What number represents the number of cubes Noah has? **Solution:** To find out how many cubes Noah has, you multiply the number of cubes Andre has by 3. - **If Andre has _n_ cubes**, then: \[ \text{Noah's cubes} = 3 \times n = 3n \] **Example:** If Andre has **4 cubes**, then Noah has: \[ 3 \times 4 = 12 \text{ cubes} \] --- ### **1. b. Lin and Clare's Cubes** **Problem Statement:** Lin has some cubes, and Clare has **7 times** as many cubes as Lin. **Question:** What number represents 7 times as many as **3**? **Solution:** To find 7 times as many as 3, multiply 7 by 3. \[ 7 \times 3 = 21 \] **Answer:** Clare has **21 cubes**. --- ### **Summary of Answers:** 1. **a.** Noah has **3 times** as many cubes as Andre. _(Without the specific number of Andre's cubes, the exact number can't be determined, but it's calculated as **3 × (Andre's cubes)**.)_ 2. **b.** Clare has **21 cubes**. --- If you have the specific number of cubes Andre has in part **a**, feel free to provide it, and I can help calculate the exact number of cubes Noah has!