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Knowing Our Numbers

    Larger numbers

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Glossary

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6th class > Knowing Our Numbers > Larger numbers

Larger numbers

If we add one more to the greatest 6-digit number we get the 7-digit number. It is called ten lakh.

If we add one more to the 7-digit number we get the smallest 8-digit number. The smallest 8-digit number is called one crore.

Let’s use a 1←10 machine to see if that is actually the case. Let us assume that each box can contain at most 9 dots. As you can see the last box has 9 dots. Lets see what happens when we add one more dot to it. Click somewhere in the 1s cell to add 1:

Remember

1 hundred = 10 tens

0 10 20 30 40 50 60 70 80 90 100 10 10 10 10 10 10 100 10 10 10 10

10 Tens = 1 Hundred

1 thousand = hundreds = tens

1 lakh = thousands = hundreds

1 crore = lakhs = thousands

Try these

1.What is 10–1= ?

2. What is 100–1=?

3. What is 10,000 – 1 =?

4. What is 1,00,000 – 1 =?

5. What is 1,00,00,000 – 1 =?

Note:

1)10,100,10000,100000,10000000 are the smallest 2-digit, 3-digit,5-digit,6-digit,8-digit numbers respectively.

2)9,99 ,9999,99999,9999999 are the greatest 1-digit,2-digit,4-digit,5-digit,7-digit numbers respectively.

3)We can say that the predecessor of the smallest n-digit number is the grestest (n-1)-digit numbers.

Example: In the above case: Predecessor of the smallest 2-digit number(10) is greatest 1-digit number(9).In this case n=2;Try to apply this concept for the remaining cases.

Match the quantities to the number of digits needed to specify the quantity.

Instructions

Number of children in your class
Number of children in 6th grade
Number of people in Telangana state
Number of people in India
2 digits
3 digits
4 digits
5 digits
6 digits
7 digits
8 digits

Try to find the exact numbers through internet for your information.

Try these

1. Give an example where the number of things counted would be more than 6-digit number.

2. Starting from the greatest 6-digit number, write the previous five numbers in descending order.,,,,.

3. Starting from the smallest 8-digit number, write the next five numbers in ascending order and read them.,,,,.