Write addition sentences for arrays: sums to 25

key notes :

🌟 What is an Array?

  • An array is a group of objects arranged in rows and columns.
  • Rows ➡️ go across (horizontal)
  • Columns ➡️ go down (vertical)
  • Example: 🍎🍎🍎
    🍎🍎🍎
    → 2 rows of 3 apples each

➕ Addition Sentences from Arrays

Count the objects in each row and add them together.

Example:
🍌🍌🍌🍌
🍌🍌🍌🍌

  • 2 rows of 4 bananas → 4 + 4 = 8
  • ✅ Another way: Count all: 1+1+1+1+1+1+1+1 = 8

💡 Sums to 25

Practice making arrays where total objects ≤ 25.

Examples:

  • 5 rows of 5 🌼 → 5 + 5 + 5 + 5 + 5 = 25
  • 1 row of 10 🐶 + 1 row of 10 🐶 + 1 row of 5 🐶 → 10 + 10 + 5 = 25

🎨 Steps to Write an Addition Sentence

  1. Draw the array ✏️
  2. Count objects in each row 👀
  3. Write the addition sentence 📝
  4. Check your total ✔️

✅ Tips for Students

  • Start with small arrays first.
  • Use fingers or objects to count if needed. 🖐️
  • Always check the sum after writing the sentence.
  • Arrays help you see addition visually. 👀

🌈 Fun Example

Array of stars:
⭐⭐
⭐⭐
⭐⭐

  • 3 rows of 2 stars → 2 + 2 + 2 = 6

Learn with an example

Use repeated addition to describe the array.

4+___ = ___

The addition number sentence has 2 parts because the array has 2 rows.

Count the rectangles in the row.

There are 4 rectangles in the row.

4 + 4 = ?

Add the parts to get the sum.

4 + 4 = 8

Use repeated addition to describe the array.

2 +___ + 2 = ___

The addition number sentence has 3 parts because the array has 3 rows.

Count the triangles in the row.

There are 2 triangles in the row.

2 + 2 + 2 = ?

Add the parts to get the sum.

2 + 2 + 2 = 6

Use repeated addition to describe the array.

___ + 3 = ____

The addition number sentence has 2 parts because the array has 2 rows.

Count the circles in the row.

There are 3 circles in the row.

3 + 3 = ?

Add the parts to get the sum.

3 + 3 = 6

Let’s practice!🖊️