Composing Numbers (1-5) using Number Bonds

Free sample questions, a clear explanation, and 5 practice skills with an AI tutor that guides without giving the answer away.

Let's Be Number Detectives with Number Bonds!

Hi, super learner! Have you ever thought about how numbers are like families? A number bond is like a little home for a number family. There's the "whole" family, and then there are the "parts" that make it up!

Imagine a family of 4 little birds. That's our whole number: 4. Maybe 1 bird is in the nest, and 3 birds are on a branch. Those are the parts! The parts (1 and 3) come together to make the whole (4). See? You're already thinking like a math detective!

We can show this with blocks, drawings, and a special map called a number bond. First, we can use real things, like yummy crackers or colorful blocks. If we have 4 blocks, we can put 2 in one hand and 2 in the other. The parts are 2 and 2, and the whole is 4!

Key Takeaway!

A number bond shows us the parts that snap together to make a whole number. Part + Part = Whole!

The Great Cookie Share!

Now for a fun mission! Imagine you have 5 cookies to share with one friend. How many ways can you share them? Let's find all the number bonds for 5!

You could have 1 cookie and your friend gets 4. Our number sentence is 1 + 4 = 5.
You could have 2 cookies and your friend gets 3. Our number sentence is 2 + 3 = 5.
You could have 3 cookies and your friend gets 2. Our number sentence is 3 + 2 = 5.
You could have 4 cookies and your friend gets 1. Our number sentence is 4 + 1 = 5.
You could even have 0 cookies and give all 5 to your friend! Our number sentence is 0 + 5 = 5.

Wow! Look at all the ways you found to make 5. You are a number bond superstar! Keep looking for number families all around you.

Sample questions

1. Look at the 3 red apples. Which picture shows a way to make 3 apples?

○ Picture of 1 apple and 1 apple.

✓ Picture of 2 apples and 1 apple.

○ Picture of 3 apples and 1 apple.

○ Picture of 1 apple and 0 apples.

Answer: Picture of 2 apples and 1 apple. — Count the apples in each picture. Which one adds up to 3?

2. Here are 4 blue circles. Which picture shows two groups that make 4 circles?

○ Picture of 1 circle and 2 circles.

○ Picture of 3 circles and 0 circles.

✓ Picture of 2 circles and 2 circles.

○ Picture of 4 circles and 1 circle.

Answer: Picture of 2 circles and 2 circles. — Try counting the circles in each pair. Do they make 4 altogether?

3. There are 5 yellow stars. Which picture shows a way to make 5 stars?

○ Picture of 2 stars and 2 stars.

○ Picture of 3 stars and 1 star.

○ Picture of 5 stars and 1 star.

✓ Picture of 4 stars and 1 star.

Answer: Picture of 4 stars and 1 star. — Count the stars in each group. Which two groups combine to make 5?

Skills in this topic

Use concrete objects to show different ways to make a given number (1-5).
Draw pictorial representations of number bonds for numbers up to 5.
Complete number bonds for numbers up to 5 when one part is missing (concrete/pictorial).
Write addition number sentences (e.g., 2 + 3 = 5) to represent number bonds for numbers up to 5.
If you have 5 cookies, demonstrate all the different ways you can share them with one friend, showing the number bonds.

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