What is 8 + 8?

S1-SA1-0655

Grade Level:

Class 1

Maths, Computing, AI

Definition

What is it?

8 + 8 is a simple addition problem. It means combining two groups, each with eight items, to find the total number of items. This helps us understand how numbers grow when we put them together.

Simple Example

Quick Example

Imagine you have 8 laddoos in one box and your friend gives you another 8 laddoos in a second box. If you combine all the laddoos, how many do you have in total? You would have 8 + 8 laddoos.

Worked Example

Step-by-Step

Let's add 8 and 8 using a number line:

Step 1: Start at the number 8 on your number line.
---Step 2: Now, count 8 steps forward from 8.
---Step 3: One step forward from 8 is 9.
---Step 4: Two steps forward from 8 is 10.
---Step 5: Three steps forward from 8 is 11.
---Step 6: Four steps forward from 8 is 12.
---Step 7: Five steps forward from 8 is 13.
---Step 8: Six steps forward from 8 is 14.
---Step 9: Seven steps forward from 8 is 15.
---Step 10: Eight steps forward from 8 is 16.

So, 8 + 8 = 16.

Why It Matters

Understanding basic addition like 8+8 is crucial for Maths, Computing, and AI. In computing, it's how computers perform calculations, from simple sums to complex algorithms. Engineers, data scientists, and even game developers use these fundamental operations every day.

Common Mistakes

MISTAKE: Counting incorrectly after the first number, like starting to count from 8 again instead of 9. | CORRECTION: Always start counting the second number from the number *after* the first number.

MISTAKE: Forgetting that addition means combining, and instead thinking it means finding the difference. | CORRECTION: Remember, the '+' sign always means to put things together to get a larger total.

MISTAKE: Getting confused with subtraction or multiplication. | CORRECTION: Look carefully at the '+' symbol. It specifically tells you to add, not subtract or multiply.

Practice Questions

Try It Yourself

QUESTION: If you have 8 cricket balls and buy 8 more, how many do you have in total? | ANSWER: 16

QUESTION: A bus has 8 passengers. At the next stop, 8 more passengers get on. How many passengers are on the bus now? | ANSWER: 16

QUESTION: Your favourite online game gives you 8 points for completing level 1 and another 8 points for completing level 2. If you want to reach 20 points, how many more points do you need after completing both levels? | ANSWER: 4 more points (because 8+8=16, and 20-16=4)

MCQ

Quick Quiz

What is the sum of 8 and 8?

The Correct Answer Is:

When you add 8 and 8, you combine them to get a total of 16. Options A, C, and D are incorrect because they do not represent the correct sum of 8 plus 8.

Real World Connection

In the Real World

Basic addition is used everywhere! When you check your mobile data usage, calculate the total bill for two items at a shop, or even predict how many runs a cricket team needs if they score 8 runs in two overs (8 + 8 = 16 runs), you're doing addition. Even apps like Google Maps use these simple calculations to figure out distances and travel times.

Key Vocabulary

Key Terms

ADDITION: The process of combining numbers to find a total. | SUM: The result you get when you add two or more numbers. | TOTAL: The complete amount or number of items. | NUMBER LINE: A straight line on which numbers are marked at equal intervals.

What's Next

What to Learn Next

Now that you understand 8 + 8, you can move on to adding larger numbers or adding three numbers together. This will help you build a strong foundation for more complex math problems and everyday calculations.