Maths Fun | GK Olympiad for Class 2 PDF Download

Math is like a big adventure where you solve puzzles and have fun with numbers. 

Let’s learn some cool math ideas in this document. Each idea comes with simple examples to help you understand.

1. Adding Numbers: Putting Things Together

• Adding means combining two groups to find out how many you have in total. It’s like putting your toys together with your friend’s toys!
  
• When you add, you count two numbers together to get a bigger number.

Example 1: You have 5 pencils in one box and 3 pencils in another box. How many pencils do you have?
Answer: 5 + 3 = 8 pencils. 
You have 8 pencils

Example 2: A banana weighs 10 grams, and an orange weighs 5 grams. What’s the total weight?
Answer: 10 + 5 = 15 grams. 
The total weight is 15 grams

2. Subtracting Numbers: Taking Away

• Subtracting is like taking some things away from a group to see what’s left. Imagine eating some candies from a bowl!
  
• When you subtract, you take one number away from another to find the difference.

Example 1: You have 10 candies, and you eat 4. How many are left?
Answer: 10 - 4 = 6 candies. 
You have 6 candies left

Example 2: An apple and a mango together weigh 20 grams. The apple weighs 8 grams. How much does the mango weigh?
Answer: 20 - 8 = 12 grams. 
The mango weighs 12 grams.

3. Multiplying Numbers: Adding the Same Number Many Times

• Multiplication is like adding the same number again and again. It’s super quick!
  
• Multiplication helps you find out how many you have if you add a number several times.

Example 1: You have 3 bags, and each bag has 4 apples. How many apples in total?
Answer: 3 × 4 = 12 apples
You have 12 apples

Example 2: If you have 2 boxes, and each box has 5 toys, how many toys do you have?
Answer: 2 × 5 = 10 toys
You have 10 toys

4. Comparing Numbers: Finding Bigger or Smaller

• Comparing numbers helps you find which number is bigger or smaller in a group. It’s like choosing the tallest friend!
  
• Look at the numbers and decide which one is the biggest or smallest.

Example 1: Which number is the smallest: 10, 12, 8, or 15?
Answer: 8 is the smallest number.

Example 2: Which number is the largest: 20, 25, 18, or 30?
Answer: 30 is the largest number.

5. Place Value: Knowing What Digits Mean

• Every number has digits, and each digit has a special job depending on where it sits in the number. It’s like giving each digit a name!
  
• Digits in a number mean different things based on their position, like ones, tens, or hundreds.

Example 1: In the number 54, what is the digit in the tens place?
Answer: 5 is in the tens place. It means 5 tens, or 50.

Example 2: In the number 321, what is the value of 3?
Answer: 3 is in the hundreds place, so it means three hundred.

6. Shapes: Counting Sides and Corners

• Shapes are fun to learn about because they’re everywhere! You can count their sides or corners to know more about them.
  
• Shapes like triangles or octagons have sides (lines) and corners (where lines meet).

Example 1: How many sides does a triangle have?
Answer: A triangle has 3 sides.

Example 2: How many sides does an octagon have?
Answer: An octagon has 8 sides.

7. Money Calculation: Counting Money

• Counting money is like adding up coins or bills to know how much you have. It’s like being a shopkeeper!
  
• Add up the value of coins or bills to find the total money.

Example: You have 2 five-dollar bills and 3 one-dollar bills. How much money do you have?
Answer: (2 × 5) + (3 × 1) = 10 + 3 = 13 dollars. You have 13 dollars!

8. Number Sequences: Finding the Pattern

• A number sequence is like a game where numbers follow a rule. You guess what comes next!
• Numbers in a sequence follow a pattern, like adding the same number each time.

Example: Look at the sequence: 10, 12, __, __. What are the next two numbers?
Answer: The numbers go up by 2 each time. So, 10 + 2 = 12, 12 + 2 = 14, 14 + 2 = 16. The next numbers are 14 and 16.