Complete the addition sentence – one digit

key notes :

➕ What is Addition?

  • Addition means putting together two or more numbers to find the total.
  • Example: 3 + 2 = 5 🎨✨

🔢 One-Digit Numbers

  • Numbers from 0 to 9 are called one-digit numbers.
  • Example: 1, 2, 5, 7

🖊️ Completing the Sentence

  • Look at the addition sentence: some numbers might be missing.
  • Fill in the missing number to make the sentence true.
  • Example: 4 + __ = 7 → Answer: 3 ✅

👀 Check with Counting

  • Count objects, fingers, or dots to find the missing number.
  • Example: 🍎🍎🍎 + 🍎🍎 = 🍎🍎🍎🍎🍎 → 3 + 2 = 5

🎨 Fun Tip

  • Use colors, stickers, or drawings to help visualize the addition.
  • Example: Color 2 stars + 3 stars → total stars = 5 🌟🌟 + 🌟🌟🌟 = 🌟🌟🌟🌟🌟

💡 Trick to Remember

  • The missing number = Total – Known Number
  • Example: __ + 4 = 9 → 9 – 4 = 5

🎯 Practice Makes Perfect

Solve lots of one-digit addition sentences to get faster and confident.

Example:

  • 2 + __ = 6
  • 7 + __ = 9
  • 1 + __ = 4

Learn with an example

Fill in the missing number.

____ + 7 = 15

Decide which number makes the addition number sentence true. You can think of an addition fact you know, or you can subtract to find the answer.

The addition fact is: 8 + 7 = 15

Did you remember this addition fact? If not, you can find the answer by subtracting.

Subtract: 15 – 7 = 8

The missing number is 8.

Fill in the missing number.

6 + ___ = 11

Decide which number makes the addition number sentence true. You can think of an addition fact you know, or you can subtract to find the answer.

The addition fact is: 6 + 5 = 11

Did you remember this addition fact? If not, you can find the answer by subtracting.

Subtract: 11 – 6 = 5

The missing number is 5.

Fill in the missing number.

7 + ___ = 10

Decide which number makes the addition number sentence true. You can think of an addition fact you know, or you can subtract to find the answer.

The addition fact is: 7 + 3 = 10

Did you remember this addition fact? If not, you can find the answer by subtracting.

Subtract: 10 – 7 = 3

The missing number is 3 .

Let’s practice!🖊️