Complete the Addition Sentence - Up to Three Digits

Fill in the missing numbers to complete the addition problems!

Understanding Addition Sentences

Addition is like putting numbers together to find a total!
Sometimes we see problems with missing numbers that we need to figure out. Don't worry - it's like solving a fun number puzzle!

How to Complete Addition Sentences

1️⃣ Look at the numbers you already have

2️⃣ Think about what number would make the equation true

3️⃣ Check your answer by adding the numbers together

Let's Practice Together!

Example 1: Fill in the blank

245 + = 400

Example 2: Which number completes the sentence?

+ 178 = 300

Parent Tips 🌟

  • Use real objects: Have your child count out 100 small items (like beans or buttons) to physically see how numbers combine.
  • Break it down: For three-digit problems, practice adding hundreds, then tens, then ones separately before combining them.
  • Make it a game: Create a "mystery number" game where you give clues about the missing number in an addition sentence.

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