Examples of repeated addition sentences from arrays (by rows)

📚 Quick Study Guide

• 🔢 An array is an arrangement of objects, pictures, or numbers in columns and rows.
• ➕ Repeated addition is adding the same number multiple times.
• 🤝 When using arrays for repeated addition, each row represents a group, and each column represents the number in each group.
• 📝 To write a repeated addition sentence from an array, count how many rows there are (number of groups) and how many items are in each row (size of each group).
• ➗ For example, an array with 3 rows and 4 items in each row can be written as: $4 + 4 + 4 = 12$.
• 💡 Remember, you are adding the number of items in each row as many times as there are rows.

✏️ Practice Quiz

1. What repeated addition sentence represents an array with 2 rows and 5 items in each row?
   1. 5 + 5
   2. 2 + 2 + 2 + 2 + 2
   3. 2 + 5
   4. 5 x 2
2. Which array does the repeated addition sentence 3 + 3 + 3 represent?
   1. 3 rows, 1 item in each row
   2. 1 row, 3 items in each row
   3. 3 rows, 3 items in each row
   4. 9 rows, 3 items in each row
3. What is the sum of the repeated addition sentence for an array with 4 rows and 2 items in each row?
   1. 6
   2. 4
   3. 8
   4. 2
4. Which of the following repeated addition sentences represents an array with 5 rows and 3 items in each row?
   1. 3 + 3 + 3
   2. 5 + 5 + 5 + 5 + 5
   3. 3 + 3 + 3 + 3 + 3
   4. 5 + 3
5. An array has the repeated addition sentence 6 + 6. How many rows are in the array?
   1. 6
   2. 2
   3. 12
   4. 3
6. What repeated addition sentence represents an array with 1 row and 7 items in the row?
   1. 1 + 1 + 1 + 1 + 1 + 1 + 1
   2. 7
   3. 1 + 7
   4. 7 + 7
7. Which array is represented by the repeated addition sentence 4 + 4 + 4 + 4 + 4?
   1. 4 rows, 4 items in each row
   2. 5 rows, 5 items in each row
   3. 5 rows, 4 items in each row
   4. 4 rows, 5 items in each row