What is Adding to Make 19?

S0-SA1-1292

Grade Level:

Pre-School – Class 2

All domains without exception

Definition

What is it?

Adding to Make 19 means finding two or more numbers that, when put together, give you a total of 19. It's like solving a puzzle where the final answer is always 19.

Simple Example

Quick Example

Imagine you have 10 marbles. Your friend gives you some more marbles, and now you have a total of 19 marbles. How many marbles did your friend give you? You need to find the number that adds to 10 to make 19.

Worked Example

Step-by-Step

Let's find the missing number in: 7 + ? = 19

1. Start with the number you know, which is 7.
---
2. We need to reach 19. You can count up from 7 until you reach 19. So, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19.
---
3. Count how many steps you took: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12.
---
4. So, the missing number is 12.
---
Answer: 7 + 12 = 19

Why It Matters

Understanding how numbers combine to make a total is fundamental to all math. It helps in managing money, planning trips, and even in careers like engineering or data science, where you constantly work with numbers and totals.

Common Mistakes

MISTAKE: Counting backward from 19 instead of counting up from the known number | CORRECTION: To find the missing part, count forward from the number you already have until you reach 19.

MISTAKE: Forgetting to include the starting number in the count | CORRECTION: When counting up, start counting from the 'next' number after the one you already have.

MISTAKE: Mixing up addition and subtraction | CORRECTION: Remember, 'adding to make 19' means you are putting numbers together to get 19, not taking away.

Practice Questions

Try It Yourself

QUESTION: What number should be added to 5 to make 19? | ANSWER: 14

QUESTION: If you have 13 stickers and want to have 19 in total, how many more stickers do you need? | ANSWER: 6

QUESTION: Two friends collected stamps. One has 8 stamps, and the other has 4 stamps. How many more stamps do they need together to reach a collection of 19? | ANSWER: 7

MCQ

Quick Quiz

Which of these pairs adds up to 19?

6 + 12

9 + 10

7 + 11

5 + 13

The Correct Answer Is:

9 + 10 equals 19. Options A, C, and D result in 18, 18, and 18 respectively, which are not 19.

Real World Connection

In the Real World

When you're helping your parents at a shop and need to make sure you have enough change, or when you are calculating how many more runs your favourite cricket team needs to reach a target score, you are using this concept. Even in online games, calculating total points often involves adding numbers to reach a specific goal.

Key Vocabulary

Key Terms

ADDITION: The process of combining numbers to find their total | SUM: The total result when numbers are added together | MISSING NUMBER: The unknown value that needs to be found in an equation | TOTAL: The complete amount or number

What's Next

What to Learn Next

Once you master adding to make 19, you can explore adding to make other numbers like 20, 50, or even 100! This will build a strong foundation for understanding larger number operations and subtraction.