## Key Concepts

- Compare situations.
- Word problems on comparing situations.

**Introduction: **

There are 5 brown birds and 3 yellow birds on a tree.

Are there more brown birds or yellow birds?

How many more?

Let us see this:

Use cubes to compare.

5 brown birds.

3 yellow birds.

Now, we write an equation to compare.

Subtract 3 from 5, we get

5 – 3 = ____

Now, write the difference between the numbers.

Subtraction equation is

5 – 3 = 2

There are 2 brown birds more than the yellow birds.

**Example:**

There are 6 green books and 4 red books in a bag.

Are there more green books or red books?

How many more?

Use cubes to compare.

6 green cubes,

4 red cubes

One way to compare is, to subtract 4 from 6, we get:

Now write the difference between the numbers.

Subtraction equation is

6 – 4 = 2

There are 2 green books more than the red books in the bag.

Compare situations in real life:

A is longer than B.

We need to find the difference to know how much more.

**Check Our Understanding:**

- There are 6 green apples, and 4 red apples on the tree. Compare. How many more green apples are there?

Answer:

6 – 4 = 2

- There are 4 birds to the left, and 4 birds to the right. How many more birds are there to the left?

Answer:

4 – 4 = 0.

There is an equal number of birds to the left and right.

- There are 7 live, and 5 dead fish in a pond. How many more live fish are there in the pond?

Answer:

7 – 5 = 2

- Observe the picture and find the number of full glasses more than empty glasses.

Answer:

5 – 4 = 1

## Exercise

- There are 3 brown bats, and 2 red bats in a cave. How many more brown bats are there than the red bats?
- There are 2 flying birds, and 2 birds on a tree. Are the number of flying birds more than the birds on the tree?
- There are 10 flowers plucked, and 4 flowers to a plant. How many more flowers are plucked than the flowers to the plant?
- There are 8 seeds planted, and 10 seeds in a pouch. How many more seeds are in the pouch than the seeds planted?
- There are 6 toys inside a bag, and 5 toys outside of the bag; how many more toys are inside the bag?
- There are 9 people in a class, and 2 people outside the class. How many more people are there in the class?
- There are 9 apples on the tree, and 4 apples have fallen; how many more are on the tree?
- There are 7 cats on a wall, and 5 cats are jumping on the bed; how many more are on the wall? Write the equation.
- There are 7 bats in the cave, and 3 bats outside the cave; how many more are inside the cave?
- There are 10 mats in a cupboard, and 5 mats are outside the cupboard; how many more are inside the cupboard?

### Concept Map :

### What we have learned

- Comparing situation word problems.
- Comparing equation.

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