Write the Addition Sentence - Up to Three Digits

Learn how to write and solve addition problems with numbers up to 999!

What is an Addition Sentence?

An addition sentence is a math statement that shows two or more numbers being added together.
It's like putting together groups of things to find out how many you have in total. We write addition sentences using numbers and the plus (+) sign, and we finish with an equals (=) sign and the total amount.

How to Write an Addition Sentence

1️⃣ Identify the numbers you want to add together

2️⃣ Write the numbers with a plus (+) sign between them

3️⃣ Add an equals (=) sign and write the total after it

Let's Practice Together!

Example 1: Adding Two-Digit Numbers

Sarah has 24 red apples and 35 green apples. How many apples does she have in total?

24
+
35
=
?

Let's write the addition sentence:

Example 2: Adding Three-Digit Numbers

There are 143 students in the first grade and 256 students in the second grade. How many students are there in both grades?

143
+
256
=
?

Write the addition sentence and solve it:

Parent Tips 🌟

  • Use real objects like buttons or cereal pieces to demonstrate addition before writing the sentences.
  • Make it a game - challenge your child to find addition problems around the house (like counting toys in two boxes).
  • Start small - begin with single-digit addition before moving to two and three-digit numbers.

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