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What is Sixty-Six?
Grade Level:
Pre-School – Class 2
All domains without exception
Definition
What is it?
Sixty-Six is a number that comes after Sixty-Five and before Sixty-Seven. It is written as '66' using two '6' digits, where the first '6' means sixty and the second '6' means six.
Simple Example
Quick Example
Imagine you have 65 cricket balls, and your friend gives you one more. Now, how many cricket balls do you have in total? You have 66 cricket balls.
Worked Example
Step-by-Step
Let's count up to 66.
Step 1: Start counting from 60: Sixty, Sixty-One, Sixty-Two, Sixty-Three, Sixty-Four, Sixty-Five.
---Step 2: After Sixty-Five, the next number is Sixty-Six.
---Step 3: So, if you add 1 to 65, you get 66.
---Step 4: We can also write 66 as 6 tens and 6 ones.
---Answer: Sixty-Six is the number 66.
Why It Matters
Understanding numbers like 66 helps you count things, compare quantities, and solve problems in everyday life. It's a basic building block for math, essential for careers like shopkeepers, accountants, and even game developers who need to count scores.
Common Mistakes
MISTAKE: Writing 'Sixty-Six' as '606' or '660' | CORRECTION: Remember that 'Sixty-Six' means 6 tens and 6 ones, so it's written as '66'.
MISTAKE: Confusing the order of numbers, like thinking 66 comes before 65 | CORRECTION: Always remember the counting sequence: 64, 65, 66, 67. Sixty-Six is after Sixty-Five.
MISTAKE: Not understanding that the '6' in the tens place (first 6) is different from the '6' in the ones place (second 6) | CORRECTION: The first '6' in '66' represents 60 (six tens), and the second '6' represents 6 (six ones).
Practice Questions
Try It Yourself
QUESTION: What number comes just after 65? | ANSWER: 66
QUESTION: If you have 6 tens and 6 ones, what number do you have? | ANSWER: 66
QUESTION: A bus has 63 passengers. 3 more passengers get on. How many passengers are there now? | ANSWER: 66 passengers (63 + 3 = 66)
MCQ
Quick Quiz
How do you write the number 'Sixty-Six' in digits?
606
66
6
660
The Correct Answer Is:
B
Sixty-Six is written as '66', where the first 6 is in the tens place and the second 6 is in the ones place. Options A, C, and D represent different numbers.
Real World Connection
In the Real World
When you check the score of a cricket match on your phone, you might see a batsman score 66 runs. Or, if you're buying snacks, and the total bill comes to ₹66, you'll need to know this number to pay correctly using UPI or cash.
Key Vocabulary
Key Terms
NUMBER: A count or measure | DIGIT: A single symbol used to write numbers (like 0, 1, 2, 3, 4, 5, 6, 7, 8, 9) | TENS PLACE: The second position from the right in a number, representing groups of ten | ONES PLACE: The first position from the right in a number, representing single units
What's Next
What to Learn Next
Great job understanding Sixty-Six! Now you can explore larger numbers like 100 or even 1000. This will help you count bigger quantities and understand place value even better.
