What is 1 + 5?

S1-SA1-0629

Grade Level:

Class 1

Maths, Computing, AI

Definition

What is it?

1 + 5 is an addition problem asking you to combine the number 1 and the number 5. Addition means joining two or more numbers to find their total sum. When we add 1 and 5, we are finding out how many items there are in total if we have one item and then add five more.

Simple Example

Quick Example

Imagine you have 1 cricket ball. Your friend gives you 5 more cricket balls. How many cricket balls do you have in total now? You started with 1, added 5, so you combine them to find the total.

Worked Example

Step-by-Step

Let's find the answer to 1 + 5:

1. Start with the first number, which is 1.
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2. Now, we need to add the second number, which is 5.
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3. You can count forward from 1, five times. So, after 1 comes 2, 3, 4, 5, 6.
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4. Alternatively, you can use objects. Imagine 1 object (like one ladoo).
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5. Now, add 5 more objects (five more ladoos).
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6. Count all the objects together: one, two, three, four, five, six.
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7. So, 1 + 5 equals 6.

Answer: 6

Why It Matters

Understanding addition is super important for many fields. In Computing, it's how computers perform basic calculations for everything from games to apps. AI uses addition in complex algorithms to process data and make decisions. Even in careers like data analysis or software development, basic addition is the foundation for solving bigger problems.

Common Mistakes

MISTAKE: Counting only up to 5 instead of adding 5 to 1 (e.g., thinking 1+5 is 5) | CORRECTION: Always start counting from the first number and add the second number to it.

MISTAKE: Confusing addition with multiplication (e.g., thinking 1+5 is 1x5=5) | CORRECTION: Addition combines quantities, while multiplication is repeated addition. Look for the '+' symbol.

MISTAKE: Getting confused if the order is changed (e.g., thinking 5+1 is different from 1+5) | CORRECTION: For addition, the order of numbers does not change the sum. 1+5 is the same as 5+1.

Practice Questions

Try It Yourself

QUESTION: If you eat 1 idli for breakfast and then eat 5 more idlis, how many idlis did you eat in total? | ANSWER: 6 idlis

QUESTION: Your mobile phone has 1% battery left. You charge it, and the battery increases by 5%. What is the new battery percentage? | ANSWER: 6%

QUESTION: A small auto-rickshaw ride costs 1 rupee. You take another ride that costs 5 rupees. If you pay with a 10 rupee note, how much change should you get? (First find total cost, then subtract from 10) | ANSWER: 4 rupees change

MCQ

Quick Quiz

What is the sum of 1 and 5?

The Correct Answer Is:

When you add 1 and 5, you combine them to get a total of 6. Options A, B, and D are incorrect as they do not represent the correct sum of 1 and 5.

Real World Connection

In the Real World

When you are shopping at a local kirana store and buy one packet of biscuits for Rs. 1 and five packets of chips for Rs. 5 each, you use addition to find the total cost of the biscuits (1+5 = 6 if chips are also 1 rupee). Even when calculating cricket scores, if a batsman hits a single (1 run) and then a boundary (5 runs), you add them to get 6 runs for those two shots.

Key Vocabulary

Key Terms

ADDITION: The process of combining two or more numbers to find their total | SUM: The result obtained when numbers are added | TOTAL: The complete amount or number | NUMBER: A mathematical value used for counting, measuring, or labelling

What's Next

What to Learn Next

Great job understanding 1 + 5! Next, you can explore adding larger numbers or adding three numbers together. This will help you build a strong foundation for more complex math problems like subtraction and multiplication.