Grade 1
  1. Numbers and Counting  1.1. Counting to 10  1.2. Counting to 20  1.3. Counting to 50  1.4. Counting to 100  1.5. Writing Numbers 1 to 10  1.6. Writing Numbers 1 to 20  1.7. Writing Numbers 1 to 50  1.8. Writing Numbers 1 to 100  1.9. Reading Numbers 1 to 10  1.10. Reading Numbers 1 to 20  1.11. Reading Numbers 1 to 50  1.12. Reading Numbers 1 to 100  1.13. Comparing Numbers  1.14. Ordering Numbers  1.15. Odd and Even Numbers  1.16. Number Patterns  1.17. Skip Counting by 2s, 5s, and 10s  1.18. Understanding Zero
  2. Basic Addition and Subtraction  2.1. Understanding Addition  2.2. Addition Facts within 10  2.3. Addition Facts within 20  2.4. Adding Zero  2.5. Adding One More  2.6. Adding Two More  2.7. Adding Three More  2.8. Adding Using Pictures  2.9. Addition Word Problems  2.10. Understanding Subtraction  2.11. Subtraction Facts within 10  2.12. Subtraction Facts within 20  2.13. Subtracting Zero  2.14. Subtracting One  2.15. Subtracting Two  2.16. Subtraction Using Pictures  2.17. Subtraction Word Problems  2.18. Introduction to Doubles Facts  2.19. Introduction to Making 10
  3. Place Value and Number Sense  3.1. Understanding Tens and Ones  3.2. Counting by Tens  3.3. Place Value within 20  3.4. Place Value within 50  3.5. Place Value within 100  3.6. Reading and Writing Two-Digit Numbers  3.7. Comparing Two-Digit Numbers  3.8. Decomposing Numbers
  4. Measurement  4.1. Length  4.1.1. Comparing Lengths  4.1.2. Measuring with Non-Standard Units  4.1.3. Using Standard Units (Inches and Centimeters) in Length  4.2. Weight  4.2.1. Comparing Weights  4.2.2. Heavy and Light Objects  4.2.3. Introduction to Grams and Pounds  4.3. Capacity  4.3.1. Comparing Capacity  4.3.2. Full and Empty  4.3.3. Introduction to Liters and Milliliters  4.4. Time  4.4.1. Telling Time to the Hour  4.4.2. Telling Time to the Half Hour  4.4.3. Days of the Week  4.4.4. Months of the Year  4.4.5. Understanding Yesterday, Today, and Tomorrow  4.5. Money  4.5.1. Recognizing Coins  4.5.2. Counting Coins  4.5.3. Introduction to Dollar and Cents Symbols  4.5.4. Simple Addition and Subtraction with Money
  5. Geometry  5.1. 2D Shapes  5.1.1. Recognizing 2D Shapes  5.1.2. Drawing 2D Shapes  5.1.3. Naming 2D Shapes  5.1.4. Properties of 2D Shapes  5.1.5. Sorting 2D Shapes  5.1.6. Composing Simple Shapes  5.2. 3D Shapes  5.2.1. Recognizing 3D Shapes  5.2.2. Naming 3D Shapes  5.2.3. Properties of 3D Shapes  5.2.4. Sorting 3D Shapes  5.3. Position and Direction  5.3.1. Left and Right  5.3.2. Above and Below  5.3.3. Inside and Outside  5.3.4. Near and Far  5.3.5. In Front and Behind
  6. Patterns and Sorting  6.1. Recognizing Patterns  6.2. Extending Patterns  6.3. Creating Patterns  6.4. Sorting by Color  6.5. Sorting by Shape  6.6. Sorting by Size
  7. Data and Graphing  7.1. Introduction to Data  7.2. Collecting Data  7.3. Tally Marks  7.4. Bar Graphs  7.5. Picture Graphs  7.6. Interpreting Simple Graphs
  8. Fractions  8.1. Understanding Halves  8.2. Understanding Fourths  8.3. Dividing Shapes into Equal Parts  8.4. Identifying Equal and Unequal Parts

Grade 1 → Basic Addition and Subtraction ↓


Adding Three More


Understanding basic addition is an important part of learning math in first grade. One of the essential skills students learn is adding numbers together. In today's topic, we will focus on "adding three more." This means taking one number and adding the number three to it.

What is yoga?

Addition is when you add two or more numbers together to find out what they sum to. When you add numbers, you start with a certain number and work your way up.

Adding three more: Step-by-step

The idea of "add three more" is straightforward. To solve it, you need to follow these steps:

  1. Start with a number: This is your starting point.
  2. Count three numbers from your starting point.
  3. The number you arrive at will be your answer.

To make this clearer, let's look at some examples:

Example

Example 1: Adding 3 to 2.

Start with 2, then add 3:

2 + 3 = 5

So 2+3 adds up to 5.

Example 2: Adding 4 to 3.

Start with 4, then add 3:

4 + 3 = 7

So 4+3 adds up to 7.

Example 3: Adding 3 to 10.

Start with 10, then add 3:

10 + 3 = 13

So 10+3 adds up to 13.

Visualizing "adding three more"

Representing the numbers visually can make addition easier to understand. Let's picture this.

Add 3 to the number 1:

You have 1 black square to start with and add 3 red squares to it. This makes a total of 4 squares.

Add 3 to the number 7:

You have 7 black squares and add 3 red squares to it, making a total of 10 squares.

Practice more with examples

Let's practice with some more examples:

Example 4: Adding 5 to 3.

5 + 3 = 8

Example 5: Adding 3 to 9.

9 + 3 = 12

When you add 3 to a number, you count up 3 from the starting point.

Understanding the pattern

When adding threes to numbers, you will start to see patterns. This is because adding 3s is a consistent process.

For example, if you look at the results of these actions:

0 + 3 = 3
1 + 3 = 4
2 + 3 = 5
3 + 3 = 6
4 + 3 = 7

You can see that the results form a sequence where each number is formed by adding 1 to the previous number.

Subtract and add three more

Now let's look at how "add three more" and subtraction work together.

Example 6: If 6 + 3 = 9, then what is 9 - 3?

9 - 3 = 6

When you subtract 3 from 9, you reverse the addition you did before.

Example 7: If 8 + 3 = 11, then what is 11 - 3?

11 - 3 = 8

Similarly, subtracting 3 from 11 returns the original number before adding 3.

Practical exercises

Here are some exercises you can try:

  1. 7 + 3 = ?
    2. Answer: 10
  2. 3 + 3 = ?
    3. Answer: 6
  3. 12 + 3 = ?
    4. Answer: 15
  4. 5 + 3 = ? (Extra challenge: what happens if you add 3 to 5 twice?)
    5. Answer: 11

Conclusion

Adding three is a simple but powerful concept in the basics of math. You take any number and simply count on three more. You increase your initial number by three, which is represented in the real world by adding three identical or different objects together.

Understanding addition, especially "adding three more", helps develop a strong foundation for more complex mathematical concepts. Encouraging practice using both text and visual examples can help reinforce these concepts in a fun and engaging way!


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Adding Three More

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