#### Need Help?

Get in touch with us

# Solve Word Problems When We Compare Situations

Sep 24, 2022

## 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:

1. There are 6 green apples, and 4 red apples on the tree. Compare. How many more green apples are there?
6 – 4 = 2
1. There are 4 birds to the left, and 4 birds to the right. How many more birds are there to the left?

4 – 4 = 0.

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

1. There are 7 live, and 5 dead fish in a pond. How many more live fish are there in the pond?
7 – 5 = 2
1. Observe the picture and find the number of full glasses more than empty glasses.

5 – 4 = 1

## Exercise

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

### What we have learned

• Comparing situation word problems.
• Comparing equation.

#### Addition and Multiplication Using Counters & Bar-Diagrams

Introduction: We can find the solution to the word problem by solving it. Here, in this topic, we can use 3 methods to find the solution. 1. Add using counters 2. Use factors to get the product 3. Write equations to find the unknown. Addition Equation: 8+8+8 =? Multiplication equation: 3×8=? Example 1: Andrew has […]

#### Dilation: Definitions, Characteristics, and Similarities

Understanding Dilation A dilation is a transformation that produces an image that is of the same shape and different sizes. Dilation that creates a larger image is called enlargement. Describing Dilation Dilation of Scale Factor 2 The following figure undergoes a dilation with a scale factor of 2 giving an image A’ (2, 4), B’ […]

#### How to Write and Interpret Numerical Expressions?

Write numerical expressions What is the Meaning of Numerical Expression? A numerical expression is a combination of numbers and integers using basic operations such as addition, subtraction, multiplication, or division. The word PEMDAS stands for: P → Parentheses E → Exponents M → Multiplication D → Division  A → Addition S → Subtraction         Some examples […]