Numbers and Counting

Knowing how to count and use numbers is fundamental in any language. This lesson covers basic numbers, how to count, and how to use numbers in various contexts.

Basic Numbers

Cardinal Numbers

0-10: Zero, one, two, three, four, five, six, seven, eight, nine, ten
11-20: Eleven, twelve, thirteen, fourteen, fifteen, sixteen, seventeen, eighteen, nineteen, twenty
Tens: Thirty, forty, fifty, sixty, seventy, eighty, ninety
Hundreds: One hundred, two hundred, three hundred, etc.
Thousands: One thousand, two thousand, etc.

Ordinal Numbers

1st-10th: First, second, third, fourth, fifth, sixth, seventh, eighth, ninth, tenth
11th-20th: Eleventh, twelfth, thirteenth, etc.
21st, 22nd, etc.: Twenty-first, twenty-second, etc.

Counting

Counting by Ones

Example: One, two, three, four, five...

Counting by Tens

Example: Ten, twenty, thirty, forty...

Counting by Hundreds

Example: One hundred, two hundred, three hundred...

Using Numbers

Age

Example: "I am twenty-five years old."

Time

Example: "It is ten o'clock."

Money

Example: "This costs fifty dollars."

Quantity

Example: "There are seven apples."

Conclusion

Understanding and using numbers is crucial for daily communication. Being able to count and use numbers in different contexts will enhance your ability to interact in English.