Addition sentences for word problems – sums up to 18

key notes :

➕ Addition means putting things together.

Example: 5 apples 🍎 + 3 apples 🍎 = 8 apples 🍎

💬 An addition sentence shows how two or more numbers are added.

Example: 7 + 4 = 11 ✨

✋ The numbers we add are called addends.

Example: In 6 + 8 = 14, the addends are 6 and 8.

🌟 The answer to an addition sentence is called the sum.

Example: 9 + 5 = 14 (14 is the sum).

🧠 Use stories to understand addition!

Example:

Riya has 7 balloons 🎈.

Her friend gives her 5 more 🎈.

Altogether she has 7 + 5 = 12 balloons 🎉.

🎯 You can use pictures or counters to solve problems.

🐠🐠🐠 + 🐠🐠🐠🐠 = 7 🐠

🟢 Order doesn’t change the sum!

Example: 8 + 3 = 11 and 3 + 8 = 11 ✔️

🎨 Addition helps in everyday life!

Counting toys 🧸

Sharing fruits 🍌🍎

Counting classmates 👧👦

🧩 Clue Words for Addition:

  • in all
  • altogether
  • total
  • how many in total

💖 Practice sums up to 18:

6 + 7 = 13

9 + 8 = 17

5 + 6 = 11

10 + 8 = 18 🎉

🌈 Example Word Problems

  • 🐕 You have 9 dogs and your friend has 6 dogs.
    👉 How many dogs in total?
    🧮 9 + 6 = 15 dogs 🐶
  • 🍎 You ate 8 apples and your brother ate 7 apples.
    👉 How many apples did you both eat?
    🧮 8 + 7 = 15 apples 🍏
  • 🎈 There are 10 balloons and 8 more are added.
    👉 Total balloons?
    🧮 10 + 8 = 18 balloons 🎉

Learn with an example

🗼 One afternoon, Wendy caught 6 tadpoles in a pond and took them home. That left 4 tadpoles in the pond. How many tadpoles were in the pond before?

Write an addition number sentence that fits the story.__________

  • Write an addition number sentence. Add the numbers of tadpoles. First write:
  • 6 + 4
  • Now complete the addition number sentence by finding the sum of 6 and 4:
  • 6 + 4 = 10

🗼 The basketball team lost a game. They scored 3 points, but they needed 4 more points to win. In total, how many points did the team need to win?

Write an addition number sentence that fits the story.__________

  • Write an addition number sentence. Add the points. First write:
  • 3 + 4
  • Now complete the addition number sentence by finding the sum of 3 and 4:
  • 3 + 4 = 7

🗼Devon had 4 letters. Then 5 more came in the post. How many letters does Devon have now?

Write an addition number sentence that fits the story._________

  • Write an addition number sentence. Add the numbers of letters. First write:
  • 4 + 5
  • Now complete the addition number sentence by finding the sum of 4 and 5:
  • 4 + 5 = 9

Let’s practice!