Lesson 2 DOL

2. Write a multiplication equation to describe the array. ​  ​ (a)  

• 3x4=12
• 4+4+4=12
• 4x3=12
• 3+3+3+3=12

Judy collects seashells. She arranges them in 3 rows of 6. Draw Judy’s array to show how many seashells she has altogether. Then, write a multiplication equation to describe the array.

1. What is the number of rows? ______

• 6

• 3

• 24

• 4

Pedro collects shells. He arranged them in 6 rows of 4. Draw Pedro’s array to show how many shells he has altogether. Then, select the multiplication equation that describes the array.

• 4 x 6 = 24

•  4 + 4 + 4 + 4 + 4 + 4 = 24

• 6 x 4 = 24

• 6 + 6 + 6 + 6 = 24

Compare array A and B. How do the arrays represent equal groups? Write a short response.