Test: Large Numbers - CTET & State TET MCQ

The smallest 8-digit number is 1,00,00,000.
It comes just after the greatest 7-digit number 99,99,999.

When a given number is rounded off to the nearest ten thousand, check if the digit at the thousands place is more than or equal to 5.
If the number is more than 5, add 1 to the rounding digit and replace all the digits to its right with 0.
Hence, when the number 19,73,19,371 is rounded off to the nearest ten thousand, we get 19,73,20,000.

Step 1: Count the number of digits in each number. 1000 and 3222 has 4 digits whereas 111 and 225 has three digits.
Step 2: The number with less number of digits < The numbers with more number of digits

So, options b and d are not the required options
Step 3: Compare 111 and 225
Compare the hundreds digits. The hundreds digit in 111 is 1.
The hundreds digit in 225 is 2.
Since 1 < 2, 111 < 225 .

4 lies in the crores place.
The place value of 4 in the number 4,67,13,223,  is 4,00,00,000.

3,25,63,367 can be read as Three crore twenty-five lakh sixty-three thousand three hundred sixty-seven.

47,62,93,482 < 51,26,32,143 < 60,23,44,487 is arranged in ascending order.

67298823 can be written in the international place value chart as:

Hence, it can be read as Sixty-seven million two hundred ninety-eight thousand eight hundred twenty-three.

To determine which set of numbers are consecutive, we need to compare the numbers sequentially to see if they increase by 1 each time. Here are the options provided:

1. 1,23,45,345 , 1,23,45,237 , 1,23,55,221 , 1,37,29,200

   These numbers do not form a sequence of consecutive numbers.

2. 1,23,45,345 , 1,23,45,346 , 1,23,45,347 , 1,23,45,348

   These numbers form a sequence of consecutive numbers, as each number increases by 1 from the previous number.

3. 1,15,15,345 , 1,23,45,237 , 1,23,45,221 , 1,17,19,200

   These numbers do not form a sequence of consecutive numbers.

4. 1,23,45,400 , 1,52,45,900 , 1,23,55,200 , 1,37,29,500

   These numbers do not form a sequence of consecutive numbers.

Therefore, the option that represents consecutive numbers is:

Option 2: 1,23,45,345 , 1,23,45,346 , 1,23,45,347 , 1,23,45,348

8,00,00,000 + 10,00,000 + 40,000 + 5000 + 300 +70 + 1 is the expanded form of the number 8,10,45,371.

• The largest 7-digit number is 99,99,999, which is just one less than the smallest 8-digit number, 1,00,00,000.
• This makes option b correct.
• Understanding the place values helps realize the maximum number attainable with 7 digits.

The place value position of digit 7 in 478123546 is ten million
as One million has 6 zeros after 1 and 10 million has 7 zeros after 1.

6 × 10,00,000= 60,00,000

So, 6 is the digit in the ten lakh place.

586728932 + 1 = 586728933

so, successor of 586728932 is 586728933

1 Million = 10 Lakhs
1/5 × 1000000=2 Lakhs

In 57930, Place Value of 7 is thousand so, 7000 is the correct answer.

1,00,00,000=10×10,00,000

1 crore = 10 ten lakh

100 thousands = 100,000 = 1 followed by 5 zeros = 1 lakh.

88899025 - 1 =  88899024

So, The predecessor of 88899025 is 88899024.

The greatest 7-digit number is 99,99,999. The smallest 6-digit number is 1,00,000. Their difference is 99,99,999-1,00,000 = 98,99,999.

7000 Lakh = 70000000000 = 70crores