What is Making Ten?

S0-SA1-0118

Grade Level:

Class 1

Maths, Number Bonds

Definition

What is it?

Making Ten is a basic math strategy where you find pairs of numbers that add up to 10. It helps you quickly solve addition problems by using the number 10 as a friendly landmark. This skill is super useful for understanding how numbers combine.

Simple Example

Quick Example

Imagine you have 7 ladoos and your friend gives you 3 more. If you put them together, you have 7 + 3 = 10 ladoos. Here, 7 and 3 are a 'Making Ten' pair.

Worked Example

Step-by-Step

Let's say you need to add 8 + 5.
--- First, we want to make 8 into 10. How much more does 8 need to become 10? It needs 2 (because 8 + 2 = 10).
--- So, we 'break apart' the 5 into 2 and 3. (Because 2 + 3 = 5).
--- Now, we can add 8 + 2 first, which gives us 10.
--- Then, we add the remaining number, which is 3. So, 10 + 3 = 13.
--- Therefore, 8 + 5 = 13.

Why It Matters

Making Ten is a foundational skill for mental math and understanding number bonds. It builds a strong base for addition, subtraction, and even multiplication strategies. This skill is vital for careers like finance analysts, data scientists, and even everyday shopkeepers who quickly calculate totals.

Common Mistakes

MISTAKE: Students forget to break the second number correctly after taking some from it to make ten. | CORRECTION: Always check that the two parts you broke the number into still add up to the original number.

MISTAKE: Students try to make the smaller number into 10 instead of the larger number. | CORRECTION: It's usually easier and quicker to take numbers from the smaller number to make the larger number into 10.

MISTAKE: Not recognizing that 10 is a 'friendly' number for calculations. | CORRECTION: Understand that adding to or subtracting from 10 is often simpler than other numbers, making it a good intermediate step.

Practice Questions

Try It Yourself

QUESTION: Which number makes 10 with 6? | ANSWER: 4

QUESTION: If you have 9 cricket balls, how many more do you need to make 10? | ANSWER: 1

QUESTION: Use the 'Making Ten' strategy to solve 7 + 4. Show your steps. | ANSWER: 7 needs 3 to become 10. Break 4 into 3 and 1. So, (7 + 3) + 1 = 10 + 1 = 11.

MCQ

Quick Quiz

Which pair of numbers makes 10?

4 and 5

2 and 7

3 and 7

6 and 3

The Correct Answer Is:

The correct answer is C because 3 + 7 equals 10. Options A, B, and D do not add up to 10.

Real World Connection

In the Real World

When you're at a sabzi mandi (vegetable market) and buying items, if one item costs Rs. 8 and another costs Rs. 2, you quickly know it's Rs. 10 total. Or when you're counting change, you might group coins to make Rs. 10 to count faster.

Key Vocabulary

Key Terms

ADDITION: The process of combining numbers to find their total | NUMBER BOND: A pair of numbers that combine to make a specific total | MENTAL MATH: Doing calculations in your head without writing them down | STRATEGY: A plan or method used to solve a problem

What's Next

What to Learn Next

Once you're a pro at Making Ten, you can move on to 'Making 20' and 'Making Hundreds'. These concepts build on the same idea, helping you quickly solve bigger addition and subtraction problems using mental math.